19909922

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{2381}}^1$

素因数の和:2533

約数の個数: 16

約数和(自身を含む): 30956472

約数和(自身を除く): 11046550

約数列:

[1, 2, 37, 74, 113, 226, 2381, 4181, 4762, 8362, 88097, 176194, 269053, 538106, 9954961, 19909922]

約数ペア:

[(1, 19909922), (2, 9954961), (37, 538106), (74, 269053), (113, 176194), (226, 88097), (2381, 8362), (4181, 4762)]