21081705

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{45337}}^1$

素因数の和:45376

約数の個数: 16

約数和(自身を含む): 34819584

約数和(自身を除く): 13737879

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 45337, 136011, 226685, 680055, 1405447, 4216341, 7027235, 21081705]

約数ペア:

[(1, 21081705), (3, 7027235), (5, 4216341), (15, 1405447), (31, 680055), (93, 226685), (155, 136011), (465, 45337)]