20712435

素因数分解:

$3^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2089}}^1$

素因数の和:2758

約数の個数: 16

約数和(自身を含む): 33205920

約数和(自身を除く): 12493485

約数列:

[1, 3, 5, 15, 661, 1983, 2089, 3305, 6267, 9915, 10445, 31335, 1380829, 4142487, 6904145, 20712435]

約数ペア:

[(1, 20712435), (3, 6904145), (5, 4142487), (15, 1380829), (661, 31335), (1983, 10445), (2089, 9915), (3305, 6267)]