21290074

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 35703360

約数和(自身を除く): 14413286

約数列:

[1, 2, 13, 26, 43, 86, 137, 139, 274, 278, 559, 1118, 1781, 1807, 3562, 3614, 5891, 5977, 11782, 11954, 19043, 38086, 76583, 77701, 153166, 155402, 247559, 495118, 818849, 1637698, 10645037, 21290074]

約数ペア:

[(1, 21290074), (2, 10645037), (13, 1637698), (26, 818849), (43, 495118), (86, 247559), (137, 155402), (139, 153166), (274, 77701), (278, 76583), (559, 38086), (1118, 19043), (1781, 11954), (1807, 11782), (3562, 5977), (3614, 5891)]