21891080

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3673}}^1$

素因数の和:3833

約数の個数: 32

約数和(自身を含む): 49599000

約数和(自身を除く): 27707920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3673, 5960, 7346, 14692, 18365, 29384, 36730, 73460, 146920, 547277, 1094554, 2189108, 2736385, 4378216, 5472770, 10945540, 21891080]

約数ペア:

[(1, 21891080), (2, 10945540), (4, 5472770), (5, 4378216), (8, 2736385), (10, 2189108), (20, 1094554), (40, 547277), (149, 146920), (298, 73460), (596, 36730), (745, 29384), (1192, 18365), (1490, 14692), (2980, 7346), (3673, 5960)]