20553477

素因数分解:

$3^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{2393}}^1$

素因数の和:2812

約数の個数: 16

約数和(自身を含む): 31409280

約数和(自身を除く): 10855803

約数列:

[1, 3, 7, 21, 409, 1227, 2393, 2863, 7179, 8589, 16751, 50253, 978737, 2936211, 6851159, 20553477]

約数ペア:

[(1, 20553477), (3, 6851159), (7, 2936211), (21, 978737), (409, 50253), (1227, 16751), (2393, 8589), (2863, 7179)]