2021721919

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{1021}}^1$

素因数の和:1316

約数の個数: 32

約数和(自身を含む): 2472422400

約数和(自身を除く): 450700481

約数列:

[1, 7, 23, 49, 161, 251, 343, 1021, 1127, 1757, 5773, 7147, 7889, 12299, 23483, 40411, 50029, 86093, 164381, 256271, 282877, 350203, 1150667, 1793897, 1980139, 5894233, 8054669, 12557279, 41259631, 87900953, 288817417, 2021721919]

約数ペア:

[(1, 2021721919), (7, 288817417), (23, 87900953), (49, 41259631), (161, 12557279), (251, 8054669), (343, 5894233), (1021, 1980139), (1127, 1793897), (1757, 1150667), (5773, 350203), (7147, 282877), (7889, 256271), (12299, 164381), (23483, 86093), (40411, 50029)]