199909749

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{4943}}^1$

素因数の和:5037

約数の個数: 32

約数和(自身を含む): 308980224

約数和(自身を除く): 109070475

約数列:

[1, 3, 13, 17, 39, 51, 61, 183, 221, 663, 793, 1037, 2379, 3111, 4943, 13481, 14829, 40443, 64259, 84031, 192777, 252093, 301523, 904569, 1092403, 3277209, 3919799, 5125891, 11759397, 15377673, 66636583, 199909749]

約数ペア:

[(1, 199909749), (3, 66636583), (13, 15377673), (17, 11759397), (39, 5125891), (51, 3919799), (61, 3277209), (183, 1092403), (221, 904569), (663, 301523), (793, 252093), (1037, 192777), (2379, 84031), (3111, 64259), (4943, 40443), (13481, 14829)]