21525855

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1871}}^1$

素因数の和:1951

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 16213665

約数列:

[1, 3, 5, 13, 15, 39, 59, 65, 177, 195, 295, 767, 885, 1871, 2301, 3835, 5613, 9355, 11505, 24323, 28065, 72969, 110389, 121615, 331167, 364845, 551945, 1435057, 1655835, 4305171, 7175285, 21525855]

約数ペア:

[(1, 21525855), (3, 7175285), (5, 4305171), (13, 1655835), (15, 1435057), (39, 551945), (59, 364845), (65, 331167), (177, 121615), (195, 110389), (295, 72969), (767, 28065), (885, 24323), (1871, 11505), (2301, 9355), (3835, 5613)]