68445891

素因数分解:

$3^4\times {\mathrm{491}}^1\times {\mathrm{1721}}^1$

素因数の和:2224

約数の個数: 20

約数和(自身を含む): 102514104

約数和(自身を除く): 34068213

約数列:

[1, 3, 9, 27, 81, 491, 1473, 1721, 4419, 5163, 13257, 15489, 39771, 46467, 139401, 845011, 2535033, 7605099, 22815297, 68445891]

約数ペア:

[(1, 68445891), (3, 22815297), (9, 7605099), (27, 2535033), (81, 845011), (491, 139401), (1473, 46467), (1721, 39771), (4419, 15489), (5163, 13257)]