20452978

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1031}}^1$

素因数の和:1162

約数の個数: 32

約数和(自身を含む): 38142720

約数和(自身を除く): 17689742

約数列:

[1, 2, 7, 13, 14, 26, 91, 109, 182, 218, 763, 1031, 1417, 1526, 2062, 2834, 7217, 9919, 13403, 14434, 19838, 26806, 93821, 112379, 187642, 224758, 786653, 1460927, 1573306, 2921854, 10226489, 20452978]

約数ペア:

[(1, 20452978), (2, 10226489), (7, 2921854), (13, 1573306), (14, 1460927), (26, 786653), (91, 224758), (109, 187642), (182, 112379), (218, 93821), (763, 26806), (1031, 19838), (1417, 14434), (1526, 13403), (2062, 9919), (2834, 7217)]