20409644

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{577}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 36899520

約数和(自身を除く): 16489876

約数列:

[1, 2, 4, 37, 74, 148, 239, 478, 577, 956, 1154, 2308, 8843, 17686, 21349, 35372, 42698, 85396, 137903, 275806, 551612, 5102411, 10204822, 20409644]

約数ペア:

[(1, 20409644), (2, 10204822), (4, 5102411), (37, 551612), (74, 275806), (148, 137903), (239, 85396), (478, 42698), (577, 35372), (956, 21349), (1154, 17686), (2308, 8843)]