21132215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{3917}}^1$

素因数の和:4018

約数の個数: 16

約数和(自身を含む): 27645408

約数和(自身を除く): 6513193

約数列:

[1, 5, 13, 65, 83, 415, 1079, 3917, 5395, 19585, 50921, 254605, 325111, 1625555, 4226443, 21132215]

約数ペア:

[(1, 21132215), (5, 4226443), (13, 1625555), (65, 325111), (83, 254605), (415, 50921), (1079, 19585), (3917, 5395)]