18718768

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{68819}}^1$

素因数の和:68844

約数の個数: 20

約数和(自身を含む): 38401560

約数和(自身を除く): 19682792

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 68819, 137638, 275276, 550552, 1101104, 1169923, 2339846, 4679692, 9359384, 18718768]

約数ペア:

[(1, 18718768), (2, 9359384), (4, 4679692), (8, 2339846), (16, 1169923), (17, 1101104), (34, 550552), (68, 275276), (136, 137638), (272, 68819)]