21716863

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:486

約数の個数: 16

約数和(自身を含む): 25390080

約数和(自身を除く): 3673217

約数列:

[1, 7, 79, 173, 227, 553, 1211, 1589, 13667, 17933, 39271, 95669, 125531, 274897, 3102409, 21716863]

約数ペア:

[(1, 21716863), (7, 3102409), (79, 274897), (173, 125531), (227, 95669), (553, 39271), (1211, 17933), (1589, 13667)]