21956522

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{233}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 38817792

約数和(自身を除く): 16861270

約数列:

[1, 2, 7, 14, 53, 106, 127, 233, 254, 371, 466, 742, 889, 1631, 1778, 3262, 6731, 12349, 13462, 24698, 29591, 47117, 59182, 86443, 94234, 172886, 207137, 414274, 1568323, 3136646, 10978261, 21956522]

約数ペア:

[(1, 21956522), (2, 10978261), (7, 3136646), (14, 1568323), (53, 414274), (106, 207137), (127, 172886), (233, 94234), (254, 86443), (371, 59182), (466, 47117), (742, 29591), (889, 24698), (1631, 13462), (1778, 12349), (3262, 6731)]