17980911

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{491}}^1$

素因数の和:823

約数の個数: 24

約数和(自身を含む): 28116816

約数和(自身を除く): 10135905

約数列:

[1, 3, 9, 13, 39, 117, 313, 491, 939, 1473, 2817, 4069, 4419, 6383, 12207, 19149, 36621, 57447, 153683, 461049, 1383147, 1997879, 5993637, 17980911]

約数ペア:

[(1, 17980911), (3, 5993637), (9, 1997879), (13, 1383147), (39, 461049), (117, 153683), (313, 57447), (491, 36621), (939, 19149), (1473, 12207), (2817, 6383), (4069, 4419)]