21207116

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39863}}^1$

素因数の和:39893

約数の個数: 24

約数和(自身を含む): 44647680

約数和(自身を除く): 23440564

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39863, 79726, 159452, 279041, 558082, 757397, 1116164, 1514794, 3029588, 5301779, 10603558, 21207116]

約数ペア:

[(1, 21207116), (2, 10603558), (4, 5301779), (7, 3029588), (14, 1514794), (19, 1116164), (28, 757397), (38, 558082), (76, 279041), (133, 159452), (266, 79726), (532, 39863)]