21106910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10099}}^1$

素因数の和:10136

約数の個数: 32

約数和(自身を含む): 43632000

約数和(自身を除く): 22525090

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10099, 20198, 50495, 100990, 111089, 191881, 222178, 383762, 555445, 959405, 1110890, 1918810, 2110691, 4221382, 10553455, 21106910]

約数ペア:

[(1, 21106910), (2, 10553455), (5, 4221382), (10, 2110691), (11, 1918810), (19, 1110890), (22, 959405), (38, 555445), (55, 383762), (95, 222178), (110, 191881), (190, 111089), (209, 100990), (418, 50495), (1045, 20198), (2090, 10099)]