18471231

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 30663360

約数和(自身を除く): 12192129

約数列:

[1, 3, 9, 17, 23, 29, 51, 69, 87, 153, 181, 207, 261, 391, 493, 543, 667, 1173, 1479, 1629, 2001, 3077, 3519, 4163, 4437, 5249, 6003, 9231, 11339, 12489, 15747, 27693, 34017, 37467, 47241, 70771, 89233, 102051, 120727, 212313, 267699, 362181, 636939, 803097, 1086543, 2052359, 6157077, 18471231]

約数ペア:

[(1, 18471231), (3, 6157077), (9, 2052359), (17, 1086543), (23, 803097), (29, 636939), (51, 362181), (69, 267699), (87, 212313), (153, 120727), (181, 102051), (207, 89233), (261, 70771), (391, 47241), (493, 37467), (543, 34017), (667, 27693), (1173, 15747), (1479, 12489), (1629, 11339), (2001, 9231), (3077, 6003), (3519, 5249), (4163, 4437)]