21778980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{362983}}^1$

素因数の和:362995

約数の個数: 24

約数和(自身を含む): 60981312

約数和(自身を除く): 39202332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 362983, 725966, 1088949, 1451932, 1814915, 2177898, 3629830, 4355796, 5444745, 7259660, 10889490, 21778980]

約数ペア:

[(1, 21778980), (2, 10889490), (3, 7259660), (4, 5444745), (5, 4355796), (6, 3629830), (10, 2177898), (12, 1814915), (15, 1451932), (20, 1088949), (30, 725966), (60, 362983)]