199965519

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3911}}^1$

素因数の和:3972

約数の個数: 48

約数和(自身を含む): 341752320

約数和(自身を除く): 141786801

約数列:

[1, 3, 9, 13, 19, 23, 39, 57, 69, 117, 171, 207, 247, 299, 437, 741, 897, 1311, 2223, 2691, 3911, 3933, 5681, 11733, 17043, 35199, 50843, 51129, 74309, 89953, 152529, 222927, 269859, 457587, 668781, 809577, 966017, 1169389, 1709107, 2898051, 3508167, 5127321, 8694153, 10524501, 15381963, 22218391, 66655173, 199965519]

約数ペア:

[(1, 199965519), (3, 66655173), (9, 22218391), (13, 15381963), (19, 10524501), (23, 8694153), (39, 5127321), (57, 3508167), (69, 2898051), (117, 1709107), (171, 1169389), (207, 966017), (247, 809577), (299, 668781), (437, 457587), (741, 269859), (897, 222927), (1311, 152529), (2223, 89953), (2691, 74309), (3911, 51129), (3933, 50843), (5681, 35199), (11733, 17043)]