25551981

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4457}}^1$

素因数の和:4490

約数の個数: 36

約数和(自身を含む): 46247292

約数和(自身を除く): 20695311

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 4457, 5733, 13371, 31199, 40113, 57941, 93597, 173823, 218393, 280791, 405587, 521469, 655179, 1216761, 1965537, 2839109, 3650283, 8517327, 25551981]

約数ペア:

[(1, 25551981), (3, 8517327), (7, 3650283), (9, 2839109), (13, 1965537), (21, 1216761), (39, 655179), (49, 521469), (63, 405587), (91, 280791), (117, 218393), (147, 173823), (273, 93597), (441, 57941), (637, 40113), (819, 31199), (1911, 13371), (4457, 5733)]