21065104

素因数分解:

$2^4\times {\mathrm{151}}^1\times {\mathrm{8719}}^1$

素因数の和:8878

約数の個数: 20

約数和(自身を含む): 41088640

約数和(自身を除く): 20023536

約数列:

[1, 2, 4, 8, 16, 151, 302, 604, 1208, 2416, 8719, 17438, 34876, 69752, 139504, 1316569, 2633138, 5266276, 10532552, 21065104]

約数ペア:

[(1, 21065104), (2, 10532552), (4, 5266276), (8, 2633138), (16, 1316569), (151, 139504), (302, 69752), (604, 34876), (1208, 17438), (2416, 8719)]