20863874

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{1321}}^1$

素因数の和:1525

約数の個数: 16

約数和(自身を含む): 32124600

約数和(自身を除く): 11260726

約数列:

[1, 2, 53, 106, 149, 298, 1321, 2642, 7897, 15794, 70013, 140026, 196829, 393658, 10431937, 20863874]

約数ペア:

[(1, 20863874), (2, 10431937), (53, 393658), (106, 196829), (149, 140026), (298, 70013), (1321, 15794), (2642, 7897)]