81291637

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4243}}^1$

素因数の和:4297

約数の個数: 24

約数和(自身を含む): 104504256

約数和(自身を除く): 23212619

約数列:

[1, 7, 17, 23, 49, 119, 161, 391, 833, 1127, 2737, 4243, 19159, 29701, 72131, 97589, 207907, 504917, 683123, 1659013, 3534419, 4781861, 11613091, 81291637]

約数ペア:

[(1, 81291637), (7, 11613091), (17, 4781861), (23, 3534419), (49, 1659013), (119, 683123), (161, 504917), (391, 207907), (833, 97589), (1127, 72131), (2737, 29701), (4243, 19159)]