19289968

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{70919}}^1$

素因数の和:70944

約数の個数: 20

約数和(自身を含む): 39573360

約数和(自身を除く): 20283392

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 70919, 141838, 283676, 567352, 1134704, 1205623, 2411246, 4822492, 9644984, 19289968]

約数ペア:

[(1, 19289968), (2, 9644984), (4, 4822492), (8, 2411246), (16, 1205623), (17, 1134704), (34, 567352), (68, 283676), (136, 141838), (272, 70919)]