21323700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:111

約数の個数: 216

約数和(自身を含む): 74474400

約数和(自身を除く): 53150700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 29, 30, 36, 38, 43, 45, 50, 57, 58, 60, 75, 76, 86, 87, 90, 95, 100, 114, 116, 129, 145, 150, 171, 172, 174, 180, 190, 215, 225, 228, 258, 261, 285, 290, 300, 342, 348, 380, 387, 430, 435, 450, 475, 516, 522, 551, 570, 580, 645, 684, 725, 774, 817, 855, 860, 870, 900, 950, 1044, 1075, 1102, 1140, 1247, 1290, 1305, 1425, 1450, 1548, 1634, 1653, 1710, 1740, 1900, 1935, 2150, 2175, 2204, 2451, 2494, 2580, 2610, 2755, 2850, 2900, 3225, 3268, 3306, 3420, 3741, 3870, 4085, 4275, 4300, 4350, 4902, 4959, 4988, 5220, 5510, 5700, 6235, 6450, 6525, 6612, 7353, 7482, 7740, 8170, 8265, 8550, 8700, 9675, 9804, 9918, 11020, 11223, 12255, 12470, 12900, 13050, 13775, 14706, 14964, 16340, 16530, 17100, 18705, 19350, 19836, 20425, 22446, 23693, 24510, 24795, 24940, 26100, 27550, 29412, 31175, 33060, 36765, 37410, 38700, 40850, 41325, 44892, 47386, 49020, 49590, 55100, 56115, 61275, 62350, 71079, 73530, 74820, 81700, 82650, 93525, 94772, 99180, 112230, 118465, 122550, 123975, 124700, 142158, 147060, 165300, 183825, 187050, 213237, 224460, 236930, 245100, 247950, 280575, 284316, 355395, 367650, 374100, 426474, 473860, 495900, 561150, 592325, 710790, 735300, 852948, 1066185, 1122300, 1184650, 1421580, 1776975, 2132370, 2369300, 3553950, 4264740, 5330925, 7107900, 10661850, 21323700]

約数ペア:

[(1, 21323700), (2, 10661850), (3, 7107900), (4, 5330925), (5, 4264740), (6, 3553950), (9, 2369300), (10, 2132370), (12, 1776975), (15, 1421580), (18, 1184650), (19, 1122300), (20, 1066185), (25, 852948), (29, 735300), (30, 710790), (36, 592325), (38, 561150), (43, 495900), (45, 473860), (50, 426474), (57, 374100), (58, 367650), (60, 355395), (75, 284316), (76, 280575), (86, 247950), (87, 245100), (90, 236930), (95, 224460), (100, 213237), (114, 187050), (116, 183825), (129, 165300), (145, 147060), (150, 142158), (171, 124700), (172, 123975), (174, 122550), (180, 118465), (190, 112230), (215, 99180), (225, 94772), (228, 93525), (258, 82650), (261, 81700), (285, 74820), (290, 73530), (300, 71079), (342, 62350), (348, 61275), (380, 56115), (387, 55100), (430, 49590), (435, 49020), (450, 47386), (475, 44892), (516, 41325), (522, 40850), (551, 38700), (570, 37410), (580, 36765), (645, 33060), (684, 31175), (725, 29412), (774, 27550), (817, 26100), (855, 24940), (860, 24795), (870, 24510), (900, 23693), (950, 22446), (1044, 20425), (1075, 19836), (1102, 19350), (1140, 18705), (1247, 17100), (1290, 16530), (1305, 16340), (1425, 14964), (1450, 14706), (1548, 13775), (1634, 13050), (1653, 12900), (1710, 12470), (1740, 12255), (1900, 11223), (1935, 11020), (2150, 9918), (2175, 9804), (2204, 9675), (2451, 8700), (2494, 8550), (2580, 8265), (2610, 8170), (2755, 7740), (2850, 7482), (2900, 7353), (3225, 6612), (3268, 6525), (3306, 6450), (3420, 6235), (3741, 5700), (3870, 5510), (4085, 5220), (4275, 4988), (4300, 4959), (4350, 4902)]