21917830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10487}}^1$

素因数の和:10524

約数の個数: 32

約数和(自身を含む): 45308160

約数和(自身を除く): 23390330

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10487, 20974, 52435, 104870, 115357, 199253, 230714, 398506, 576785, 996265, 1153570, 1992530, 2191783, 4383566, 10958915, 21917830]

約数ペア:

[(1, 21917830), (2, 10958915), (5, 4383566), (10, 2191783), (11, 1992530), (19, 1153570), (22, 996265), (38, 576785), (55, 398506), (95, 230714), (110, 199253), (190, 115357), (209, 104870), (418, 52435), (1045, 20974), (2090, 10487)]