18863145

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{19961}}^1$

素因数の和:19982

約数の個数: 32

約数和(自身を含む): 38327040

約数和(自身を除く): 19463895

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 19961, 59883, 99805, 139727, 179649, 299415, 419181, 538947, 698635, 898245, 1257543, 2095905, 2694735, 3772629, 6287715, 18863145]

約数ペア:

[(1, 18863145), (3, 6287715), (5, 3772629), (7, 2694735), (9, 2095905), (15, 1257543), (21, 898245), (27, 698635), (35, 538947), (45, 419181), (63, 299415), (105, 179649), (135, 139727), (189, 99805), (315, 59883), (945, 19961)]