21223816

素因数分解:

$2^3\times {\mathrm{787}}^1\times {\mathrm{3371}}^1$

素因数の和:4164

約数の個数: 16

約数和(自身を含む): 39857040

約数和(自身を除く): 18633224

約数列:

[1, 2, 4, 8, 787, 1574, 3148, 3371, 6296, 6742, 13484, 26968, 2652977, 5305954, 10611908, 21223816]

約数ペア:

[(1, 21223816), (2, 10611908), (4, 5305954), (8, 2652977), (787, 26968), (1574, 13484), (3148, 6742), (3371, 6296)]