18893979

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{5981}}^1$

素因数の和:6009

約数の個数: 24

約数和(自身を含む): 30484272

約数和(自身を除く): 11590293

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 5981, 17943, 53829, 77753, 161487, 233259, 484461, 699777, 1453383, 2099331, 6297993, 18893979]

約数ペア:

[(1, 18893979), (3, 6297993), (9, 2099331), (13, 1453383), (27, 699777), (39, 484461), (81, 233259), (117, 161487), (243, 77753), (351, 53829), (1053, 17943), (3159, 5981)]