19937528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{191707}}^1$

素因数の和:191726

約数の個数: 16

約数和(自身を含む): 40258680

約数和(自身を除く): 20321152

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 191707, 383414, 766828, 1533656, 2492191, 4984382, 9968764, 19937528]

約数ペア:

[(1, 19937528), (2, 9968764), (4, 4984382), (8, 2492191), (13, 1533656), (26, 766828), (52, 383414), (104, 191707)]