18561128

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 35640000

約数和(自身を除く): 17078872

約数列:

[1, 2, 4, 8, 89, 131, 178, 199, 262, 356, 398, 524, 712, 796, 1048, 1592, 11659, 17711, 23318, 26069, 35422, 46636, 52138, 70844, 93272, 104276, 141688, 208552, 2320141, 4640282, 9280564, 18561128]

約数ペア:

[(1, 18561128), (2, 9280564), (4, 4640282), (8, 2320141), (89, 208552), (131, 141688), (178, 104276), (199, 93272), (262, 70844), (356, 52138), (398, 46636), (524, 35422), (712, 26069), (796, 23318), (1048, 17711), (1592, 11659)]