19827460

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13963}}^1$

素因数の和:14043

約数の個数: 24

約数和(自身を含む): 42227136

約数和(自身を除く): 22399676

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13963, 27926, 55852, 69815, 139630, 279260, 991373, 1982746, 3965492, 4956865, 9913730, 19827460]

約数ペア:

[(1, 19827460), (2, 9913730), (4, 4956865), (5, 3965492), (10, 1982746), (20, 991373), (71, 279260), (142, 139630), (284, 69815), (355, 55852), (710, 27926), (1420, 13963)]