16981503

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 29315328

約数和(自身を除く): 12333825

約数列:

[1, 3, 7, 11, 21, 33, 41, 77, 121, 123, 163, 231, 287, 363, 451, 489, 847, 861, 1141, 1353, 1793, 2541, 3157, 3423, 4961, 5379, 6683, 9471, 12551, 14883, 19723, 20049, 34727, 37653, 46781, 59169, 73513, 104181, 138061, 140343, 220539, 414183, 514591, 808643, 1543773, 2425929, 5660501, 16981503]

約数ペア:

[(1, 16981503), (3, 5660501), (7, 2425929), (11, 1543773), (21, 808643), (33, 514591), (41, 414183), (77, 220539), (121, 140343), (123, 138061), (163, 104181), (231, 73513), (287, 59169), (363, 46781), (451, 37653), (489, 34727), (847, 20049), (861, 19723), (1141, 14883), (1353, 12551), (1793, 9471), (2541, 6683), (3157, 5379), (3423, 4961)]