21495310

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{126443}}^1$

素因数の和:126467

約数の個数: 16

約数和(自身を含む): 40967856

約数和(自身を除く): 19472546

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 126443, 252886, 632215, 1264430, 2149531, 4299062, 10747655, 21495310]

約数ペア:

[(1, 21495310), (2, 10747655), (5, 4299062), (10, 2149531), (17, 1264430), (34, 632215), (85, 252886), (170, 126443)]