3971520007

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1\times {\mathrm{743}}^1$

素因数の和:1303

約数の個数: 32

約数和(自身を含む): 4939683840

約数和(自身を除く): 968163833

約数列:

[1, 7, 13, 91, 151, 389, 743, 1057, 1963, 2723, 5057, 5201, 9659, 13741, 35399, 58739, 67613, 112193, 289027, 411173, 763607, 785351, 1458509, 2023189, 3757351, 5345249, 10209563, 26301457, 43643077, 305501539, 567360001, 3971520007]

約数ペア:

[(1, 3971520007), (7, 567360001), (13, 305501539), (91, 43643077), (151, 26301457), (389, 10209563), (743, 5345249), (1057, 3757351), (1963, 2023189), (2723, 1458509), (5057, 785351), (5201, 763607), (9659, 411173), (13741, 289027), (35399, 112193), (58739, 67613)]