21222170

素因数分解:

$2^1\times 5^1\times {\mathrm{283}}^1\times {\mathrm{7499}}^1$

素因数の和:7789

約数の個数: 16

約数和(自身を含む): 38340000

約数和(自身を除く): 17117830

約数列:

[1, 2, 5, 10, 283, 566, 1415, 2830, 7499, 14998, 37495, 74990, 2122217, 4244434, 10611085, 21222170]

約数ペア:

[(1, 21222170), (2, 10611085), (5, 4244434), (10, 2122217), (283, 74990), (566, 37495), (1415, 14998), (2830, 7499)]