21573840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89891}}^1$

素因数の和:89907

約数の個数: 40

約数和(自身を含む): 66879648

約数和(自身を除く): 45305808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89891, 179782, 269673, 359564, 449455, 539346, 719128, 898910, 1078692, 1348365, 1438256, 1797820, 2157384, 2696730, 3595640, 4314768, 5393460, 7191280, 10786920, 21573840]

約数ペア:

[(1, 21573840), (2, 10786920), (3, 7191280), (4, 5393460), (5, 4314768), (6, 3595640), (8, 2696730), (10, 2157384), (12, 1797820), (15, 1438256), (16, 1348365), (20, 1078692), (24, 898910), (30, 719128), (40, 539346), (48, 449455), (60, 359564), (80, 269673), (120, 179782), (240, 89891)]