21946772

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{577}}^1$

素因数の和:875

約数の個数: 24

約数和(自身を含む): 39666984

約数和(自身を除く): 17720212

約数列:

[1, 2, 4, 37, 74, 148, 257, 514, 577, 1028, 1154, 2308, 9509, 19018, 21349, 38036, 42698, 85396, 148289, 296578, 593156, 5486693, 10973386, 21946772]

約数ペア:

[(1, 21946772), (2, 10973386), (4, 5486693), (37, 593156), (74, 296578), (148, 148289), (257, 85396), (514, 42698), (577, 38036), (1028, 21349), (1154, 19018), (2308, 9509)]