19899065

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{461}}^1$

素因数の和:652

約数の個数: 16

約数和(自身を含む): 24449040

約数和(自身を除く): 4549975

約数列:

[1, 5, 89, 97, 445, 461, 485, 2305, 8633, 41029, 43165, 44717, 205145, 223585, 3979813, 19899065]

約数ペア:

[(1, 19899065), (5, 3979813), (89, 223585), (97, 205145), (445, 44717), (461, 43165), (485, 41029), (2305, 8633)]