21984900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1$

素因数の和:91

約数の個数: 216

約数和(自身を含む): 79369920

約数和(自身を除く): 57385020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 25, 28, 29, 30, 35, 38, 42, 50, 57, 58, 60, 70, 75, 76, 84, 87, 95, 100, 105, 114, 116, 133, 140, 145, 150, 174, 175, 190, 203, 210, 228, 266, 285, 290, 300, 348, 350, 361, 380, 399, 406, 420, 435, 475, 525, 532, 551, 570, 580, 609, 665, 700, 722, 725, 798, 812, 870, 950, 1015, 1050, 1083, 1102, 1140, 1218, 1330, 1425, 1444, 1450, 1596, 1653, 1740, 1805, 1900, 1995, 2030, 2100, 2166, 2175, 2204, 2436, 2527, 2660, 2755, 2850, 2900, 3045, 3306, 3325, 3610, 3857, 3990, 4060, 4332, 4350, 5054, 5075, 5415, 5510, 5700, 6090, 6612, 6650, 7220, 7581, 7714, 7980, 8265, 8700, 9025, 9975, 10108, 10150, 10469, 10830, 11020, 11571, 12180, 12635, 13300, 13775, 15162, 15225, 15428, 16530, 18050, 19285, 19950, 20300, 20938, 21660, 23142, 25270, 27075, 27550, 30324, 30450, 31407, 33060, 36100, 37905, 38570, 39900, 41325, 41876, 46284, 50540, 52345, 54150, 55100, 57855, 60900, 62814, 63175, 73283, 75810, 77140, 82650, 96425, 104690, 108300, 115710, 125628, 126350, 146566, 151620, 157035, 165300, 189525, 192850, 209380, 219849, 231420, 252700, 261725, 289275, 293132, 314070, 366415, 379050, 385700, 439698, 523450, 578550, 628140, 732830, 758100, 785175, 879396, 1046900, 1099245, 1157100, 1465660, 1570350, 1832075, 2198490, 3140700, 3664150, 4396980, 5496225, 7328300, 10992450, 21984900]

約数ペア:

[(1, 21984900), (2, 10992450), (3, 7328300), (4, 5496225), (5, 4396980), (6, 3664150), (7, 3140700), (10, 2198490), (12, 1832075), (14, 1570350), (15, 1465660), (19, 1157100), (20, 1099245), (21, 1046900), (25, 879396), (28, 785175), (29, 758100), (30, 732830), (35, 628140), (38, 578550), (42, 523450), (50, 439698), (57, 385700), (58, 379050), (60, 366415), (70, 314070), (75, 293132), (76, 289275), (84, 261725), (87, 252700), (95, 231420), (100, 219849), (105, 209380), (114, 192850), (116, 189525), (133, 165300), (140, 157035), (145, 151620), (150, 146566), (174, 126350), (175, 125628), (190, 115710), (203, 108300), (210, 104690), (228, 96425), (266, 82650), (285, 77140), (290, 75810), (300, 73283), (348, 63175), (350, 62814), (361, 60900), (380, 57855), (399, 55100), (406, 54150), (420, 52345), (435, 50540), (475, 46284), (525, 41876), (532, 41325), (551, 39900), (570, 38570), (580, 37905), (609, 36100), (665, 33060), (700, 31407), (722, 30450), (725, 30324), (798, 27550), (812, 27075), (870, 25270), (950, 23142), (1015, 21660), (1050, 20938), (1083, 20300), (1102, 19950), (1140, 19285), (1218, 18050), (1330, 16530), (1425, 15428), (1444, 15225), (1450, 15162), (1596, 13775), (1653, 13300), (1740, 12635), (1805, 12180), (1900, 11571), (1995, 11020), (2030, 10830), (2100, 10469), (2166, 10150), (2175, 10108), (2204, 9975), (2436, 9025), (2527, 8700), (2660, 8265), (2755, 7980), (2850, 7714), (2900, 7581), (3045, 7220), (3306, 6650), (3325, 6612), (3610, 6090), (3857, 5700), (3990, 5510), (4060, 5415), (4332, 5075), (4350, 5054)]