21501354

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 51609600

約数和(自身を除く): 30108246

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 127, 139, 174, 203, 254, 278, 381, 406, 417, 609, 762, 834, 889, 973, 1218, 1778, 1946, 2667, 2919, 3683, 4031, 5334, 5838, 7366, 8062, 11049, 12093, 17653, 22098, 24186, 25781, 28217, 35306, 51562, 52959, 56434, 77343, 84651, 105918, 123571, 154686, 169302, 247142, 370713, 511937, 741426, 1023874, 1535811, 3071622, 3583559, 7167118, 10750677, 21501354]

約数ペア:

[(1, 21501354), (2, 10750677), (3, 7167118), (6, 3583559), (7, 3071622), (14, 1535811), (21, 1023874), (29, 741426), (42, 511937), (58, 370713), (87, 247142), (127, 169302), (139, 154686), (174, 123571), (203, 105918), (254, 84651), (278, 77343), (381, 56434), (406, 52959), (417, 51562), (609, 35306), (762, 28217), (834, 25781), (889, 24186), (973, 22098), (1218, 17653), (1778, 12093), (1946, 11049), (2667, 8062), (2919, 7366), (3683, 5838), (4031, 5334)]