19278544

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{70877}}^1$

素因数の和:70902

約数の個数: 20

約数和(自身を含む): 39549924

約数和(自身を除く): 20271380

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 70877, 141754, 283508, 567016, 1134032, 1204909, 2409818, 4819636, 9639272, 19278544]

約数ペア:

[(1, 19278544), (2, 9639272), (4, 4819636), (8, 2409818), (16, 1204909), (17, 1134032), (34, 567016), (68, 283508), (136, 141754), (272, 70877)]