21704910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{5281}}^1$

素因数の和:5428

約数の個数: 32

約数和(自身を含む): 52481952

約数和(自身を除く): 30777042

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 137, 274, 411, 685, 822, 1370, 2055, 4110, 5281, 10562, 15843, 26405, 31686, 52810, 79215, 158430, 723497, 1446994, 2170491, 3617485, 4340982, 7234970, 10852455, 21704910]

約数ペア:

[(1, 21704910), (2, 10852455), (3, 7234970), (5, 4340982), (6, 3617485), (10, 2170491), (15, 1446994), (30, 723497), (137, 158430), (274, 79215), (411, 52810), (685, 31686), (822, 26405), (1370, 15843), (2055, 10562), (4110, 5281)]