19807448

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{145643}}^1$

素因数の和:145666

約数の個数: 16

約数和(自身を含む): 39323880

約数和(自身を除く): 19516432

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 145643, 291286, 582572, 1165144, 2475931, 4951862, 9903724, 19807448]

約数ペア:

[(1, 19807448), (2, 9903724), (4, 4951862), (8, 2475931), (17, 1165144), (34, 582572), (68, 291286), (136, 145643)]