20507253

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{30931}}^1$

素因数の和:30964

約数の個数: 16

約数和(自身を含む): 31179456

約数和(自身を除く): 10672203

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 30931, 92793, 402103, 525827, 1206309, 1577481, 6835751, 20507253]

約数ペア:

[(1, 20507253), (3, 6835751), (13, 1577481), (17, 1206309), (39, 525827), (51, 402103), (221, 92793), (663, 30931)]