21710530

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127709}}^1$

素因数の和:127733

約数の個数: 16

約数和(自身を含む): 41378040

約数和(自身を除く): 19667510

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 127709, 255418, 638545, 1277090, 2171053, 4342106, 10855265, 21710530]

約数ペア:

[(1, 21710530), (2, 10855265), (5, 4342106), (10, 2171053), (17, 1277090), (34, 638545), (85, 255418), (170, 127709)]