18028701

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:254

約数の個数: 36

約数和(自身を含む): 28529280

約数和(自身を除く): 10500579

約数列:

[1, 3, 9, 19, 31, 57, 93, 171, 179, 279, 361, 537, 589, 1083, 1611, 1767, 3249, 3401, 5301, 5549, 10203, 11191, 16647, 30609, 33573, 49941, 64619, 100719, 105431, 193857, 316293, 581571, 948879, 2003189, 6009567, 18028701]

約数ペア:

[(1, 18028701), (3, 6009567), (9, 2003189), (19, 948879), (31, 581571), (57, 316293), (93, 193857), (171, 105431), (179, 100719), (279, 64619), (361, 49941), (537, 33573), (589, 30609), (1083, 16647), (1611, 11191), (1767, 10203), (3249, 5549), (3401, 5301)]