21006814

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1\times {\mathrm{739}}^1$

素因数の和:1035

約数の個数: 16

約数和(自身を含む): 32207760

約数和(自身を除く): 11200946

約数列:

[1, 2, 61, 122, 233, 466, 739, 1478, 14213, 28426, 45079, 90158, 172187, 344374, 10503407, 21006814]

約数ペア:

[(1, 21006814), (2, 10503407), (61, 344374), (122, 172187), (233, 90158), (466, 45079), (739, 28426), (1478, 14213)]