20945392

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{100699}}^1$

素因数の和:100720

約数の個数: 20

約数和(自身を含む): 43703800

約数和(自身を除く): 22758408

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 100699, 201398, 402796, 805592, 1309087, 1611184, 2618174, 5236348, 10472696, 20945392]

約数ペア:

[(1, 20945392), (2, 10472696), (4, 5236348), (8, 2618174), (13, 1611184), (16, 1309087), (26, 805592), (52, 402796), (104, 201398), (208, 100699)]