638408511

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{11113}}^1$

素因数の和:11623

約数の個数: 24

約数和(自身を含む): 995192016

約数和(自身を除く): 356783505

約数列:

[1, 3, 9, 13, 39, 117, 491, 1473, 4419, 6383, 11113, 19149, 33339, 57447, 100017, 144469, 433407, 1300221, 5456483, 16369449, 49108347, 70934279, 212802837, 638408511]

約数ペア:

[(1, 638408511), (3, 212802837), (9, 70934279), (13, 49108347), (39, 16369449), (117, 5456483), (491, 1300221), (1473, 433407), (4419, 144469), (6383, 100017), (11113, 57447), (19149, 33339)]