18765981

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1499}}^1$

素因数の和:1625

約数の個数: 24

約数和(自身を含む): 29484000

約数和(自身を除く): 10718019

約数列:

[1, 3, 9, 13, 39, 107, 117, 321, 963, 1391, 1499, 4173, 4497, 12519, 13491, 19487, 58461, 160393, 175383, 481179, 1443537, 2085109, 6255327, 18765981]

約数ペア:

[(1, 18765981), (3, 6255327), (9, 2085109), (13, 1443537), (39, 481179), (107, 175383), (117, 160393), (321, 58461), (963, 19487), (1391, 13491), (1499, 12519), (4173, 4497)]