21051450

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:229

約数の個数: 144

約数和(自身を含む): 66620736

約数和(自身を除く): 45569286

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 41, 42, 45, 50, 63, 70, 75, 82, 90, 105, 123, 126, 150, 163, 175, 205, 210, 225, 246, 287, 315, 326, 350, 369, 410, 450, 489, 525, 574, 615, 630, 738, 815, 861, 978, 1025, 1050, 1141, 1230, 1435, 1467, 1575, 1630, 1722, 1845, 2050, 2282, 2445, 2583, 2870, 2934, 3075, 3150, 3423, 3690, 4075, 4305, 4890, 5166, 5705, 6150, 6683, 6846, 7175, 7335, 8150, 8610, 9225, 10269, 11410, 12225, 12915, 13366, 14350, 14670, 17115, 18450, 20049, 20538, 21525, 24450, 25830, 28525, 33415, 34230, 36675, 40098, 43050, 46781, 51345, 57050, 60147, 64575, 66830, 73350, 85575, 93562, 100245, 102690, 120294, 129150, 140343, 167075, 171150, 200490, 233905, 256725, 280686, 300735, 334150, 421029, 467810, 501225, 513450, 601470, 701715, 842058, 1002450, 1169525, 1403430, 1503675, 2105145, 2339050, 3007350, 3508575, 4210290, 7017150, 10525725, 21051450]

約数ペア:

[(1, 21051450), (2, 10525725), (3, 7017150), (5, 4210290), (6, 3508575), (7, 3007350), (9, 2339050), (10, 2105145), (14, 1503675), (15, 1403430), (18, 1169525), (21, 1002450), (25, 842058), (30, 701715), (35, 601470), (41, 513450), (42, 501225), (45, 467810), (50, 421029), (63, 334150), (70, 300735), (75, 280686), (82, 256725), (90, 233905), (105, 200490), (123, 171150), (126, 167075), (150, 140343), (163, 129150), (175, 120294), (205, 102690), (210, 100245), (225, 93562), (246, 85575), (287, 73350), (315, 66830), (326, 64575), (350, 60147), (369, 57050), (410, 51345), (450, 46781), (489, 43050), (525, 40098), (574, 36675), (615, 34230), (630, 33415), (738, 28525), (815, 25830), (861, 24450), (978, 21525), (1025, 20538), (1050, 20049), (1141, 18450), (1230, 17115), (1435, 14670), (1467, 14350), (1575, 13366), (1630, 12915), (1722, 12225), (1845, 11410), (2050, 10269), (2282, 9225), (2445, 8610), (2583, 8150), (2870, 7335), (2934, 7175), (3075, 6846), (3150, 6683), (3423, 6150), (3690, 5705), (4075, 5166), (4305, 4890)]