21681772

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24979}}^1$

素因数の和:25021

約数の個数: 24

約数和(自身を含む): 44764160

約数和(自身を除く): 23082388

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24979, 49958, 99916, 174853, 349706, 699412, 774349, 1548698, 3097396, 5420443, 10840886, 21681772]

約数ペア:

[(1, 21681772), (2, 10840886), (4, 5420443), (7, 3097396), (14, 1548698), (28, 774349), (31, 699412), (62, 349706), (124, 174853), (217, 99916), (434, 49958), (868, 24979)]