13216385

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1$

素因数の和:993

約数の個数: 32

約数和(自身を含む): 20170752

約数和(自身を除く): 6954367

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 937, 1085, 2015, 2821, 4685, 6559, 12181, 14105, 29047, 32795, 60905, 85267, 145235, 203329, 377611, 426335, 1016645, 1888055, 2643277, 13216385]

約数ペア:

[(1, 13216385), (5, 2643277), (7, 1888055), (13, 1016645), (31, 426335), (35, 377611), (65, 203329), (91, 145235), (155, 85267), (217, 60905), (403, 32795), (455, 29047), (937, 14105), (1085, 12181), (2015, 6559), (2821, 4685)]