21982970

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53617}}^1$

素因数の和:53665

約数の個数: 16

約数和(自身を含む): 40535208

約数和(自身を除く): 18552238

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53617, 107234, 268085, 536170, 2198297, 4396594, 10991485, 21982970]

約数ペア:

[(1, 21982970), (2, 10991485), (5, 4396594), (10, 2198297), (41, 536170), (82, 268085), (205, 107234), (410, 53617)]