18121389

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{797}}^1$

素因数の和:877

約数の個数: 32

約数和(自身を含む): 28957824

約数和(自身を除く): 10836435

約数列:

[1, 3, 11, 13, 33, 39, 53, 143, 159, 429, 583, 689, 797, 1749, 2067, 2391, 7579, 8767, 10361, 22737, 26301, 31083, 42241, 113971, 126723, 341913, 464651, 549133, 1393953, 1647399, 6040463, 18121389]

約数ペア:

[(1, 18121389), (3, 6040463), (11, 1647399), (13, 1393953), (33, 549133), (39, 464651), (53, 341913), (143, 126723), (159, 113971), (429, 42241), (583, 31083), (689, 26301), (797, 22737), (1749, 10361), (2067, 8767), (2391, 7579)]