18177471

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 32544720

約数和(自身を除く): 14367249

約数列:

[1, 3, 9, 13, 17, 19, 37, 39, 51, 57, 111, 117, 153, 169, 171, 221, 247, 323, 333, 481, 507, 629, 663, 703, 741, 969, 1443, 1521, 1887, 1989, 2109, 2223, 2873, 2907, 3211, 4199, 4329, 5661, 6253, 6327, 8177, 8619, 9139, 9633, 11951, 12597, 18759, 24531, 25857, 27417, 28899, 35853, 37791, 54587, 56277, 73593, 82251, 106301, 107559, 118807, 155363, 163761, 318903, 356421, 466089, 491283, 956709, 1069263, 1398267, 2019719, 6059157, 18177471]

約数ペア:

[(1, 18177471), (3, 6059157), (9, 2019719), (13, 1398267), (17, 1069263), (19, 956709), (37, 491283), (39, 466089), (51, 356421), (57, 318903), (111, 163761), (117, 155363), (153, 118807), (169, 107559), (171, 106301), (221, 82251), (247, 73593), (323, 56277), (333, 54587), (481, 37791), (507, 35853), (629, 28899), (663, 27417), (703, 25857), (741, 24531), (969, 18759), (1443, 12597), (1521, 11951), (1887, 9633), (1989, 9139), (2109, 8619), (2223, 8177), (2873, 6327), (2907, 6253), (3211, 5661), (4199, 4329)]