21007738

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{1103}}^1$

素因数の和:1301

約数の個数: 16

約数和(自身を含む): 32192640

約数和(自身を除く): 11184902

約数列:

[1, 2, 89, 107, 178, 214, 1103, 2206, 9523, 19046, 98167, 118021, 196334, 236042, 10503869, 21007738]

約数ペア:

[(1, 21007738), (2, 10503869), (89, 236042), (107, 196334), (178, 118021), (214, 98167), (1103, 19046), (2206, 9523)]