20180797

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{2437}}^1$

素因数の和:2477

約数の個数: 18

約数和(自身を含む): 25430778

約数和(自身を除く): 5249981

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 2437, 8281, 17059, 31681, 119413, 221767, 411853, 1552369, 2882971, 20180797]

約数ペア:

[(1, 20180797), (7, 2882971), (13, 1552369), (49, 411853), (91, 221767), (169, 119413), (637, 31681), (1183, 17059), (2437, 8281)]