21590608

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{103801}}^1$

素因数の和:103822

約数の個数: 20

約数和(自身を含む): 45050068

約数和(自身を除く): 23459460

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 103801, 207602, 415204, 830408, 1349413, 1660816, 2698826, 5397652, 10795304, 21590608]

約数ペア:

[(1, 21590608), (2, 10795304), (4, 5397652), (8, 2698826), (13, 1660816), (16, 1349413), (26, 830408), (52, 415204), (104, 207602), (208, 103801)]