199921072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{961159}}^1$

素因数の和:961180

約数の個数: 20

約数和(自身を含む): 417143440

約数和(自身を除く): 217222368

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 961159, 1922318, 3844636, 7689272, 12495067, 15378544, 24990134, 49980268, 99960536, 199921072]

約数ペア:

[(1, 199921072), (2, 99960536), (4, 49980268), (8, 24990134), (13, 15378544), (16, 12495067), (26, 7689272), (52, 3844636), (104, 1922318), (208, 961159)]