20764431

素因数分解:

$3^4\times {\mathrm{389}}^1\times {\mathrm{659}}^1$

素因数の和:1060

約数の個数: 20

約数和(自身を含む): 31145400

約数和(自身を除く): 10380969

約数列:

[1, 3, 9, 27, 81, 389, 659, 1167, 1977, 3501, 5931, 10503, 17793, 31509, 53379, 256351, 769053, 2307159, 6921477, 20764431]

約数ペア:

[(1, 20764431), (3, 6921477), (9, 2307159), (27, 769053), (81, 256351), (389, 53379), (659, 31509), (1167, 17793), (1977, 10503), (3501, 5931)]