18169940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53441}}^1$

素因数の和:53467

約数の個数: 24

約数和(自身を含む): 40402152

約数和(自身を除く): 22232212

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 53441, 106882, 213764, 267205, 534410, 908497, 1068820, 1816994, 3633988, 4542485, 9084970, 18169940]

約数ペア:

[(1, 18169940), (2, 9084970), (4, 4542485), (5, 3633988), (10, 1816994), (17, 1068820), (20, 908497), (34, 534410), (68, 267205), (85, 213764), (170, 106882), (340, 53441)]