21401100

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 216

約数和(自身を含む): 79439360

約数和(自身を除く): 58038260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 43, 45, 50, 60, 63, 70, 75, 79, 84, 86, 90, 100, 105, 126, 129, 140, 150, 158, 172, 175, 180, 210, 215, 225, 237, 252, 258, 300, 301, 315, 316, 350, 387, 395, 420, 430, 450, 474, 516, 525, 553, 602, 630, 645, 700, 711, 774, 790, 860, 900, 903, 948, 1050, 1075, 1106, 1185, 1204, 1260, 1290, 1422, 1505, 1548, 1575, 1580, 1659, 1806, 1935, 1975, 2100, 2150, 2212, 2370, 2580, 2709, 2765, 2844, 3010, 3150, 3225, 3318, 3397, 3555, 3612, 3870, 3950, 4300, 4515, 4740, 4977, 5418, 5530, 5925, 6020, 6300, 6450, 6636, 6794, 7110, 7525, 7740, 7900, 8295, 9030, 9675, 9954, 10191, 10836, 11060, 11850, 12900, 13545, 13588, 13825, 14220, 15050, 16590, 16985, 17775, 18060, 19350, 19908, 20382, 22575, 23700, 23779, 24885, 27090, 27650, 30100, 30573, 33180, 33970, 35550, 38700, 40764, 41475, 45150, 47558, 49770, 50955, 54180, 55300, 61146, 67725, 67940, 71100, 71337, 82950, 84925, 90300, 95116, 99540, 101910, 118895, 122292, 124425, 135450, 142674, 152865, 165900, 169850, 203820, 214011, 237790, 248850, 254775, 270900, 285348, 305730, 339700, 356685, 428022, 475580, 497700, 509550, 594475, 611460, 713370, 764325, 856044, 1019100, 1070055, 1188950, 1426740, 1528650, 1783425, 2140110, 2377900, 3057300, 3566850, 4280220, 5350275, 7133700, 10700550, 21401100]

約数ペア:

[(1, 21401100), (2, 10700550), (3, 7133700), (4, 5350275), (5, 4280220), (6, 3566850), (7, 3057300), (9, 2377900), (10, 2140110), (12, 1783425), (14, 1528650), (15, 1426740), (18, 1188950), (20, 1070055), (21, 1019100), (25, 856044), (28, 764325), (30, 713370), (35, 611460), (36, 594475), (42, 509550), (43, 497700), (45, 475580), (50, 428022), (60, 356685), (63, 339700), (70, 305730), (75, 285348), (79, 270900), (84, 254775), (86, 248850), (90, 237790), (100, 214011), (105, 203820), (126, 169850), (129, 165900), (140, 152865), (150, 142674), (158, 135450), (172, 124425), (175, 122292), (180, 118895), (210, 101910), (215, 99540), (225, 95116), (237, 90300), (252, 84925), (258, 82950), (300, 71337), (301, 71100), (315, 67940), (316, 67725), (350, 61146), (387, 55300), (395, 54180), (420, 50955), (430, 49770), (450, 47558), (474, 45150), (516, 41475), (525, 40764), (553, 38700), (602, 35550), (630, 33970), (645, 33180), (700, 30573), (711, 30100), (774, 27650), (790, 27090), (860, 24885), (900, 23779), (903, 23700), (948, 22575), (1050, 20382), (1075, 19908), (1106, 19350), (1185, 18060), (1204, 17775), (1260, 16985), (1290, 16590), (1422, 15050), (1505, 14220), (1548, 13825), (1575, 13588), (1580, 13545), (1659, 12900), (1806, 11850), (1935, 11060), (1975, 10836), (2100, 10191), (2150, 9954), (2212, 9675), (2370, 9030), (2580, 8295), (2709, 7900), (2765, 7740), (2844, 7525), (3010, 7110), (3150, 6794), (3225, 6636), (3318, 6450), (3397, 6300), (3555, 6020), (3612, 5925), (3870, 5530), (3950, 5418), (4300, 4977), (4515, 4740)]