18840744

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{20129}}^1$

素因数の和:20154

約数の個数: 48

約数和(自身を含む): 54954900

約数和(自身を除く): 36114156

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 20129, 40258, 60387, 80516, 120774, 161032, 181161, 241548, 261677, 362322, 483096, 523354, 724644, 785031, 1046708, 1449288, 1570062, 2093416, 2355093, 3140124, 4710186, 6280248, 9420372, 18840744]

約数ペア:

[(1, 18840744), (2, 9420372), (3, 6280248), (4, 4710186), (6, 3140124), (8, 2355093), (9, 2093416), (12, 1570062), (13, 1449288), (18, 1046708), (24, 785031), (26, 724644), (36, 523354), (39, 483096), (52, 362322), (72, 261677), (78, 241548), (104, 181161), (117, 161032), (156, 120774), (234, 80516), (312, 60387), (468, 40258), (936, 20129)]