21865261

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1733}}^1$

素因数の和:1812

約数の個数: 16

約数和(自身を含む): 25302528

約数和(自身を除く): 3437267

約数列:

[1, 11, 31, 37, 341, 407, 1147, 1733, 12617, 19063, 53723, 64121, 590953, 705331, 1987751, 21865261]

約数ペア:

[(1, 21865261), (11, 1987751), (31, 705331), (37, 590953), (341, 64121), (407, 53723), (1147, 19063), (1733, 12617)]