19720058

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{7907}}^1$

素因数の和:7981

約数の個数: 16

約数和(自身を含む): 31315680

約数和(自身を除く): 11595622

約数列:

[1, 2, 29, 43, 58, 86, 1247, 2494, 7907, 15814, 229303, 340001, 458606, 680002, 9860029, 19720058]

約数ペア:

[(1, 19720058), (2, 9860029), (29, 680002), (43, 458606), (58, 340001), (86, 229303), (1247, 15814), (2494, 7907)]