21816060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:555

約数の個数: 96

約数和(自身を含む): 70533120

約数和(自身を除く): 48717060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 127, 140, 210, 254, 381, 409, 420, 508, 635, 762, 818, 889, 1227, 1270, 1524, 1636, 1778, 1905, 2045, 2454, 2540, 2667, 2863, 3556, 3810, 4090, 4445, 4908, 5334, 5726, 6135, 7620, 8180, 8589, 8890, 10668, 11452, 12270, 13335, 14315, 17178, 17780, 24540, 26670, 28630, 34356, 42945, 51943, 53340, 57260, 85890, 103886, 155829, 171780, 207772, 259715, 311658, 363601, 519430, 623316, 727202, 779145, 1038860, 1090803, 1454404, 1558290, 1818005, 2181606, 3116580, 3636010, 4363212, 5454015, 7272020, 10908030, 21816060]

約数ペア:

[(1, 21816060), (2, 10908030), (3, 7272020), (4, 5454015), (5, 4363212), (6, 3636010), (7, 3116580), (10, 2181606), (12, 1818005), (14, 1558290), (15, 1454404), (20, 1090803), (21, 1038860), (28, 779145), (30, 727202), (35, 623316), (42, 519430), (60, 363601), (70, 311658), (84, 259715), (105, 207772), (127, 171780), (140, 155829), (210, 103886), (254, 85890), (381, 57260), (409, 53340), (420, 51943), (508, 42945), (635, 34356), (762, 28630), (818, 26670), (889, 24540), (1227, 17780), (1270, 17178), (1524, 14315), (1636, 13335), (1778, 12270), (1905, 11452), (2045, 10668), (2454, 8890), (2540, 8589), (2667, 8180), (2863, 7620), (3556, 6135), (3810, 5726), (4090, 5334), (4445, 4908)]