18807813

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2113}}^1$

素因数の和:2185

約数の個数: 24

約数和(自身を含む): 29020992

約数和(自身を除く): 10213179

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 2113, 2967, 6339, 8901, 19017, 48599, 90859, 145797, 272577, 437391, 817731, 2089757, 6269271, 18807813]

約数ペア:

[(1, 18807813), (3, 6269271), (9, 2089757), (23, 817731), (43, 437391), (69, 272577), (129, 145797), (207, 90859), (387, 48599), (989, 19017), (2113, 8901), (2967, 6339)]