21537089

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1951}}^1$

素因数の和:2060

約数の個数: 16

約数和(自身を含む): 26234880

約数和(自身を除く): 4697791

約数列:

[1, 7, 19, 83, 133, 581, 1577, 1951, 11039, 13657, 37069, 161933, 259483, 1133531, 3076727, 21537089]

約数ペア:

[(1, 21537089), (7, 3076727), (19, 1133531), (83, 259483), (133, 161933), (581, 37069), (1577, 13657), (1951, 11039)]