20732816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{379}}^1$

素因数の和:663

約数の個数: 40

約数和(自身を含む): 43538880

約数和(自身を除く): 22806064

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 263, 379, 526, 758, 1052, 1516, 2104, 3032, 3419, 4208, 4927, 6064, 6838, 9854, 13676, 19708, 27352, 39416, 54704, 78832, 99677, 199354, 398708, 797416, 1295801, 1594832, 2591602, 5183204, 10366408, 20732816]

約数ペア:

[(1, 20732816), (2, 10366408), (4, 5183204), (8, 2591602), (13, 1594832), (16, 1295801), (26, 797416), (52, 398708), (104, 199354), (208, 99677), (263, 78832), (379, 54704), (526, 39416), (758, 27352), (1052, 19708), (1516, 13676), (2104, 9854), (3032, 6838), (3419, 6064), (4208, 4927)]