21137915379

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59209847}}^1$

素因数の和:59209874

約数の個数: 16

約数和(自身を含む): 34104872448

約数和(自身を除く): 12966957069

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 59209847, 177629541, 414468929, 1006567399, 1243406787, 3019702197, 7045971793, 21137915379]

約数ペア:

[(1, 21137915379), (3, 7045971793), (7, 3019702197), (17, 1243406787), (21, 1006567399), (51, 414468929), (119, 177629541), (357, 59209847)]