21088470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2351}}^1$

素因数の和:2397

約数の個数: 64

約数和(自身を含む): 56899584

約数和(自身を除く): 35811114

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 78, 115, 130, 138, 195, 230, 299, 345, 390, 598, 690, 897, 1495, 1794, 2351, 2990, 4485, 4702, 7053, 8970, 11755, 14106, 23510, 30563, 35265, 54073, 61126, 70530, 91689, 108146, 152815, 162219, 183378, 270365, 305630, 324438, 458445, 540730, 702949, 811095, 916890, 1405898, 1622190, 2108847, 3514745, 4217694, 7029490, 10544235, 21088470]

約数ペア:

[(1, 21088470), (2, 10544235), (3, 7029490), (5, 4217694), (6, 3514745), (10, 2108847), (13, 1622190), (15, 1405898), (23, 916890), (26, 811095), (30, 702949), (39, 540730), (46, 458445), (65, 324438), (69, 305630), (78, 270365), (115, 183378), (130, 162219), (138, 152815), (195, 108146), (230, 91689), (299, 70530), (345, 61126), (390, 54073), (598, 35265), (690, 30563), (897, 23510), (1495, 14106), (1794, 11755), (2351, 8970), (2990, 7053), (4485, 4702)]