22171690

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{20341}}^1$

素因数の和:20457

約数の個数: 16

約数和(自身を含む): 40277160

約数和(自身を除く): 18105470

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 20341, 40682, 101705, 203410, 2217169, 4434338, 11085845, 22171690]

約数ペア:

[(1, 22171690), (2, 11085845), (5, 4434338), (10, 2217169), (109, 203410), (218, 101705), (545, 40682), (1090, 20341)]