21966520

素因数分解:

$2^3\times 5^1\times {\mathrm{549163}}^1$

素因数の和:549174

約数の個数: 16

約数和(自身を含む): 49424760

約数和(自身を除く): 27458240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 549163, 1098326, 2196652, 2745815, 4393304, 5491630, 10983260, 21966520]

約数ペア:

[(1, 21966520), (2, 10983260), (4, 5491630), (5, 4393304), (8, 2745815), (10, 2196652), (20, 1098326), (40, 549163)]