18385965

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{593}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 35026992

約数和(自身を除く): 16641027

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 53, 65, 117, 159, 195, 265, 477, 585, 593, 689, 795, 1779, 2067, 2385, 2965, 3445, 5337, 6201, 7709, 8895, 10335, 23127, 26685, 31005, 31429, 38545, 69381, 94287, 115635, 157145, 282861, 346905, 408577, 471435, 1225731, 1414305, 2042885, 3677193, 6128655, 18385965]

約数ペア:

[(1, 18385965), (3, 6128655), (5, 3677193), (9, 2042885), (13, 1414305), (15, 1225731), (39, 471435), (45, 408577), (53, 346905), (65, 282861), (117, 157145), (159, 115635), (195, 94287), (265, 69381), (477, 38545), (585, 31429), (593, 31005), (689, 26685), (795, 23127), (1779, 10335), (2067, 8895), (2385, 7709), (2965, 6201), (3445, 5337)]