20875276

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{2131}}^1$

素因数の和:2245

約数の個数: 24

約数和(自身を含む): 38205440

約数和(自身を除く): 17330164

約数列:

[1, 2, 4, 31, 62, 79, 124, 158, 316, 2131, 2449, 4262, 4898, 8524, 9796, 66061, 132122, 168349, 264244, 336698, 673396, 5218819, 10437638, 20875276]

約数ペア:

[(1, 20875276), (2, 10437638), (4, 5218819), (31, 673396), (62, 336698), (79, 264244), (124, 168349), (158, 132122), (316, 66061), (2131, 9796), (2449, 8524), (4262, 4898)]