21003210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2141}}^1$

素因数の和:2263

約数の個数: 48

約数和(自身を含む): 55135080

約数和(自身を除く): 34131870

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 109, 218, 327, 545, 654, 981, 1090, 1635, 1962, 2141, 3270, 4282, 4905, 6423, 9810, 10705, 12846, 19269, 21410, 32115, 38538, 64230, 96345, 192690, 233369, 466738, 700107, 1166845, 1400214, 2100321, 2333690, 3500535, 4200642, 7001070, 10501605, 21003210]

約数ペア:

[(1, 21003210), (2, 10501605), (3, 7001070), (5, 4200642), (6, 3500535), (9, 2333690), (10, 2100321), (15, 1400214), (18, 1166845), (30, 700107), (45, 466738), (90, 233369), (109, 192690), (218, 96345), (327, 64230), (545, 38538), (654, 32115), (981, 21410), (1090, 19269), (1635, 12846), (1962, 10705), (2141, 9810), (3270, 6423), (4282, 4905)]