81315918

素因数分解:

$2^1\times 3^2\times {\mathrm{89}}^1\times {\mathrm{193}}^1\times {\mathrm{263}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 179768160

約数和(自身を除く): 98452242

約数列:

[1, 2, 3, 6, 9, 18, 89, 178, 193, 263, 267, 386, 526, 534, 579, 789, 801, 1158, 1578, 1602, 1737, 2367, 3474, 4734, 17177, 23407, 34354, 46814, 50759, 51531, 70221, 101518, 103062, 140442, 152277, 154593, 210663, 304554, 309186, 421326, 456831, 913662, 4517551, 9035102, 13552653, 27105306, 40657959, 81315918]

約数ペア:

[(1, 81315918), (2, 40657959), (3, 27105306), (6, 13552653), (9, 9035102), (18, 4517551), (89, 913662), (178, 456831), (193, 421326), (263, 309186), (267, 304554), (386, 210663), (526, 154593), (534, 152277), (579, 140442), (789, 103062), (801, 101518), (1158, 70221), (1578, 51531), (1602, 50759), (1737, 46814), (2367, 34354), (3474, 23407), (4734, 17177)]