18093789

素因数分解:

$3^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{461}}^1$

素因数の和:570

約数の個数: 36

約数和(自身を含む): 30810780

約数和(自身を除く): 12716991

約数列:

[1, 3, 7, 9, 21, 49, 63, 89, 147, 267, 441, 461, 623, 801, 1383, 1869, 3227, 4149, 4361, 5607, 9681, 13083, 22589, 29043, 39249, 41029, 67767, 123087, 203301, 287203, 369261, 861609, 2010421, 2584827, 6031263, 18093789]

約数ペア:

[(1, 18093789), (3, 6031263), (7, 2584827), (9, 2010421), (21, 861609), (49, 369261), (63, 287203), (89, 203301), (147, 123087), (267, 67767), (441, 41029), (461, 39249), (623, 29043), (801, 22589), (1383, 13083), (1869, 9681), (3227, 5607), (4149, 4361)]