20001007

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{443}}^1$

素因数の和:630

約数の個数: 16

約数和(自身を含む): 22675968

約数和(自身を除く): 2674961

約数列:

[1, 13, 23, 151, 299, 443, 1963, 3473, 5759, 10189, 45149, 66893, 132457, 869609, 1538539, 20001007]

約数ペア:

[(1, 20001007), (13, 1538539), (23, 869609), (151, 132457), (299, 66893), (443, 45149), (1963, 10189), (3473, 5759)]