20988770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{190807}}^1$

素因数の和:190825

約数の個数: 16

約数和(自身を含む): 41214528

約数和(自身を除く): 20225758

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 190807, 381614, 954035, 1908070, 2098877, 4197754, 10494385, 20988770]

約数ペア:

[(1, 20988770), (2, 10494385), (5, 4197754), (10, 2098877), (11, 1908070), (22, 954035), (55, 381614), (110, 190807)]