16620345

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2777}}^1$

素因数の和:2814

約数の個数: 48

約数和(自身を含む): 34669440

約数和(自身を除く): 18049095

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 2777, 5985, 8331, 13885, 19439, 24993, 41655, 52763, 58317, 97195, 124965, 158289, 174951, 263815, 291585, 369341, 474867, 791445, 874755, 1108023, 1846705, 2374335, 3324069, 5540115, 16620345]

約数ペア:

[(1, 16620345), (3, 5540115), (5, 3324069), (7, 2374335), (9, 1846705), (15, 1108023), (19, 874755), (21, 791445), (35, 474867), (45, 369341), (57, 291585), (63, 263815), (95, 174951), (105, 158289), (133, 124965), (171, 97195), (285, 58317), (315, 52763), (399, 41655), (665, 24993), (855, 19439), (1197, 13885), (1995, 8331), (2777, 5985)]