20407948

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{1033}}^1$

素因数の和:1497

約数の個数: 24

約数和(自身を含む): 39085200

約数和(自身を除く): 18677252

約数列:

[1, 2, 4, 11, 22, 44, 449, 898, 1033, 1796, 2066, 4132, 4939, 9878, 11363, 19756, 22726, 45452, 463817, 927634, 1855268, 5101987, 10203974, 20407948]

約数ペア:

[(1, 20407948), (2, 10203974), (4, 5101987), (11, 1855268), (22, 927634), (44, 463817), (449, 45452), (898, 22726), (1033, 19756), (1796, 11363), (2066, 9878), (4132, 4939)]