20731529

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7349}}^1$

素因数の和:7400

約数の個数: 16

約数和(自身を含む): 26342400

約数和(自身を除く): 5610871

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 7349, 51443, 95537, 227819, 668759, 1594733, 2961647, 20731529]

約数ペア:

[(1, 20731529), (7, 2961647), (13, 1594733), (31, 668759), (91, 227819), (217, 95537), (403, 51443), (2821, 7349)]