21007502

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{7573}}^1$

素因数の和:7667

約数の個数: 16

約数和(自身を含む): 33628560

約数和(自身を除く): 12621058

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 7573, 15146, 143887, 287774, 552829, 1105658, 10503751, 21007502]

約数ペア:

[(1, 21007502), (2, 10503751), (19, 1105658), (38, 552829), (73, 287774), (146, 143887), (1387, 15146), (2774, 7573)]