18994910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{172681}}^1$

素因数の和:172699

約数の個数: 16

約数和(自身を含む): 37299312

約数和(自身を除く): 18304402

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 172681, 345362, 863405, 1726810, 1899491, 3798982, 9497455, 18994910]

約数ペア:

[(1, 18994910), (2, 9497455), (5, 3798982), (10, 1899491), (11, 1726810), (22, 863405), (55, 345362), (110, 172681)]