20618408

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{62861}}^1$

素因数の和:62908

約数の個数: 16

約数和(自身を含む): 39603060

約数和(自身を除く): 18984652

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 62861, 125722, 251444, 502888, 2577301, 5154602, 10309204, 20618408]

約数ペア:

[(1, 20618408), (2, 10309204), (4, 5154602), (8, 2577301), (41, 502888), (82, 251444), (164, 125722), (328, 62861)]