669371521

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{2389}}^1\times {\mathrm{3079}}^1$

素因数の和:5488

約数の個数: 16

約数和(自身を含む): 824454400

約数和(自身を除く): 155082879

約数列:

[1, 7, 13, 91, 2389, 3079, 16723, 21553, 31057, 40027, 217399, 280189, 7355731, 51490117, 95624503, 669371521]

約数ペア:

[(1, 669371521), (7, 95624503), (13, 51490117), (91, 7355731), (2389, 280189), (3079, 217399), (16723, 40027), (21553, 31057)]