19629968

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{72169}}^1$

素因数の和:72194

約数の個数: 20

約数和(自身を含む): 40270860

約数和(自身を除く): 20640892

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 72169, 144338, 288676, 577352, 1154704, 1226873, 2453746, 4907492, 9814984, 19629968]

約数ペア:

[(1, 19629968), (2, 9814984), (4, 4907492), (8, 2453746), (16, 1226873), (17, 1154704), (34, 577352), (68, 288676), (136, 144338), (272, 72169)]