18219087

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:261

約数の個数: 40

約数和(自身を含む): 29324592

約数和(自身を除く): 11105505

約数列:

[1, 3, 9, 17, 27, 51, 81, 101, 131, 153, 303, 393, 459, 909, 1179, 1377, 1717, 2227, 2727, 3537, 5151, 6681, 8181, 10611, 13231, 15453, 20043, 39693, 46359, 60129, 119079, 139077, 180387, 224927, 357237, 674781, 1071711, 2024343, 6073029, 18219087]

約数ペア:

[(1, 18219087), (3, 6073029), (9, 2024343), (17, 1071711), (27, 674781), (51, 357237), (81, 224927), (101, 180387), (131, 139077), (153, 119079), (303, 60129), (393, 46359), (459, 39693), (909, 20043), (1179, 15453), (1377, 13231), (1717, 10611), (2227, 8181), (2727, 6681), (3537, 5151)]