18051215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{409}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 27000960

約数和(自身を除く): 8949745

約数列:

[1, 5, 7, 13, 35, 65, 91, 97, 409, 455, 485, 679, 1261, 2045, 2863, 3395, 5317, 6305, 8827, 14315, 26585, 37219, 39673, 44135, 186095, 198365, 277711, 515749, 1388555, 2578745, 3610243, 18051215]

約数ペア:

[(1, 18051215), (5, 3610243), (7, 2578745), (13, 1388555), (35, 515749), (65, 277711), (91, 198365), (97, 186095), (409, 44135), (455, 39673), (485, 37219), (679, 26585), (1261, 14315), (2045, 8827), (2863, 6305), (3395, 5317)]