20045207

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1217}}^1$

素因数の和:1418

約数の個数: 16

約数和(自身を含む): 24827712

約数和(自身を除く): 4782505

約数列:

[1, 7, 13, 91, 181, 1217, 1267, 2353, 8519, 15821, 16471, 110747, 220277, 1541939, 2863601, 20045207]

約数ペア:

[(1, 20045207), (7, 2863601), (13, 1541939), (91, 220277), (181, 110747), (1217, 16471), (1267, 15821), (2353, 8519)]