20495559

素因数分解:

$3^1\times 7^1\times {\mathrm{659}}^1\times {\mathrm{1481}}^1$

素因数の和:2150

約数の個数: 16

約数和(自身を含む): 31299840

約数和(自身を除く): 10804281

約数列:

[1, 3, 7, 21, 659, 1481, 1977, 4443, 4613, 10367, 13839, 31101, 975979, 2927937, 6831853, 20495559]

約数ペア:

[(1, 20495559), (3, 6831853), (7, 2927937), (21, 975979), (659, 31101), (1481, 13839), (1977, 10367), (4443, 4613)]