21758152

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{209213}}^1$

素因数の和:209232

約数の個数: 16

約数和(自身を含む): 43934940

約数和(自身を除く): 22176788

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 209213, 418426, 836852, 1673704, 2719769, 5439538, 10879076, 21758152]

約数ペア:

[(1, 21758152), (2, 10879076), (4, 5439538), (8, 2719769), (13, 1673704), (26, 836852), (52, 418426), (104, 209213)]