21710870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127711}}^1$

素因数の和:127735

約数の個数: 16

約数和(自身を含む): 41378688

約数和(自身を除く): 19667818

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 127711, 255422, 638555, 1277110, 2171087, 4342174, 10855435, 21710870]

約数ペア:

[(1, 21710870), (2, 10855435), (5, 4342174), (10, 2171087), (17, 1277110), (34, 638555), (85, 255422), (170, 127711)]