21142872

素因数分解:

$2^3\times 3^2\times {\mathrm{293651}}^1$

素因数の和:293663

約数の個数: 24

約数和(自身を含む): 57262140

約数和(自身を除く): 36119268

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 293651, 587302, 880953, 1174604, 1761906, 2349208, 2642859, 3523812, 5285718, 7047624, 10571436, 21142872]

約数ペア:

[(1, 21142872), (2, 10571436), (3, 7047624), (4, 5285718), (6, 3523812), (8, 2642859), (9, 2349208), (12, 1761906), (18, 1174604), (24, 880953), (36, 587302), (72, 293651)]