19475001

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 36516480

約数和(自身を除く): 17041479

約数列:

[1, 3, 7, 9, 13, 21, 39, 43, 49, 63, 79, 91, 117, 129, 147, 237, 273, 301, 387, 441, 553, 559, 637, 711, 819, 903, 1027, 1659, 1677, 1911, 2107, 2709, 3081, 3397, 3871, 3913, 4977, 5031, 5733, 6321, 7189, 9243, 10191, 11613, 11739, 18963, 21567, 23779, 27391, 30573, 34839, 35217, 44161, 50323, 64701, 71337, 82173, 132483, 150969, 166453, 214011, 246519, 309127, 397449, 452907, 499359, 927381, 1498077, 2163889, 2782143, 6491667, 19475001]

約数ペア:

[(1, 19475001), (3, 6491667), (7, 2782143), (9, 2163889), (13, 1498077), (21, 927381), (39, 499359), (43, 452907), (49, 397449), (63, 309127), (79, 246519), (91, 214011), (117, 166453), (129, 150969), (147, 132483), (237, 82173), (273, 71337), (301, 64701), (387, 50323), (441, 44161), (553, 35217), (559, 34839), (637, 30573), (711, 27391), (819, 23779), (903, 21567), (1027, 18963), (1659, 11739), (1677, 11613), (1911, 10191), (2107, 9243), (2709, 7189), (3081, 6321), (3397, 5733), (3871, 5031), (3913, 4977)]