18865116

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{4721}}^1$

素因数の和:4771

約数の個数: 48

約数和(自身を含む): 50242080

約数和(自身を除く): 31376964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 108, 111, 148, 222, 333, 444, 666, 999, 1332, 1998, 3996, 4721, 9442, 14163, 18884, 28326, 42489, 56652, 84978, 127467, 169956, 174677, 254934, 349354, 509868, 524031, 698708, 1048062, 1572093, 2096124, 3144186, 4716279, 6288372, 9432558, 18865116]

約数ペア:

[(1, 18865116), (2, 9432558), (3, 6288372), (4, 4716279), (6, 3144186), (9, 2096124), (12, 1572093), (18, 1048062), (27, 698708), (36, 524031), (37, 509868), (54, 349354), (74, 254934), (108, 174677), (111, 169956), (148, 127467), (222, 84978), (333, 56652), (444, 42489), (666, 28326), (999, 18884), (1332, 14163), (1998, 9442), (3996, 4721)]