18932781

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{293}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 30820608

約数和(自身を除く): 11887827

約数列:

[1, 3, 7, 17, 21, 51, 119, 181, 293, 357, 543, 879, 1267, 2051, 3077, 3801, 4981, 6153, 9231, 14943, 21539, 34867, 53033, 64617, 104601, 159099, 371231, 901561, 1113693, 2704683, 6310927, 18932781]

約数ペア:

[(1, 18932781), (3, 6310927), (7, 2704683), (17, 1113693), (21, 901561), (51, 371231), (119, 159099), (181, 104601), (293, 64617), (357, 53033), (543, 34867), (879, 21539), (1267, 14943), (2051, 9231), (3077, 6153), (3801, 4981)]