21458030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10267}}^1$

素因数の和:10304

約数の個数: 32

約数和(自身を含む): 44357760

約数和(自身を除く): 22899730

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10267, 20534, 51335, 102670, 112937, 195073, 225874, 390146, 564685, 975365, 1129370, 1950730, 2145803, 4291606, 10729015, 21458030]

約数ペア:

[(1, 21458030), (2, 10729015), (5, 4291606), (10, 2145803), (11, 1950730), (19, 1129370), (22, 975365), (38, 564685), (55, 390146), (95, 225874), (110, 195073), (190, 112937), (209, 102670), (418, 51335), (1045, 20534), (2090, 10267)]