21105104

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{14821}}^1$

素因数の和:14918

約数の個数: 20

約数和(自身を含む): 41353380

約数和(自身を除く): 20248276

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 14821, 29642, 59284, 118568, 237136, 1319069, 2638138, 5276276, 10552552, 21105104]

約数ペア:

[(1, 21105104), (2, 10552552), (4, 5276276), (8, 2638138), (16, 1319069), (89, 237136), (178, 118568), (356, 59284), (712, 29642), (1424, 14821)]