21111230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1579}}^1$

素因数の和:1784

約数の個数: 32

約数和(自身を含む): 43683840

約数和(自身を除く): 22572610

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 191, 382, 955, 1337, 1579, 1910, 2674, 3158, 6685, 7895, 11053, 13370, 15790, 22106, 55265, 110530, 301589, 603178, 1507945, 2111123, 3015890, 4222246, 10555615, 21111230]

約数ペア:

[(1, 21111230), (2, 10555615), (5, 4222246), (7, 3015890), (10, 2111123), (14, 1507945), (35, 603178), (70, 301589), (191, 110530), (382, 55265), (955, 22106), (1337, 15790), (1579, 13370), (1910, 11053), (2674, 7895), (3158, 6685)]