21176749

素因数分解:

${\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 23708160

約数和(自身を除く): 2531411

約数列:

[1, 11, 89, 97, 223, 979, 1067, 2453, 8633, 19847, 21631, 94963, 218317, 237941, 1925159, 21176749]

約数ペア:

[(1, 21176749), (11, 1925159), (89, 237941), (97, 218317), (223, 94963), (979, 21631), (1067, 19847), (2453, 8633)]