21286152

素因数分解:

$2^3\times 3^4\times {\mathrm{107}}^1\times {\mathrm{307}}^1$

素因数の和:432

約数の個数: 80

約数和(自身を含む): 60374160

約数和(自身を除く): 39088008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 107, 108, 162, 214, 216, 307, 321, 324, 428, 614, 642, 648, 856, 921, 963, 1228, 1284, 1842, 1926, 2456, 2568, 2763, 2889, 3684, 3852, 5526, 5778, 7368, 7704, 8289, 8667, 11052, 11556, 16578, 17334, 22104, 23112, 24867, 32849, 33156, 34668, 49734, 65698, 66312, 69336, 98547, 99468, 131396, 197094, 198936, 262792, 295641, 394188, 591282, 788376, 886923, 1182564, 1773846, 2365128, 2660769, 3547692, 5321538, 7095384, 10643076, 21286152]

約数ペア:

[(1, 21286152), (2, 10643076), (3, 7095384), (4, 5321538), (6, 3547692), (8, 2660769), (9, 2365128), (12, 1773846), (18, 1182564), (24, 886923), (27, 788376), (36, 591282), (54, 394188), (72, 295641), (81, 262792), (107, 198936), (108, 197094), (162, 131396), (214, 99468), (216, 98547), (307, 69336), (321, 66312), (324, 65698), (428, 49734), (614, 34668), (642, 33156), (648, 32849), (856, 24867), (921, 23112), (963, 22104), (1228, 17334), (1284, 16578), (1842, 11556), (1926, 11052), (2456, 8667), (2568, 8289), (2763, 7704), (2889, 7368), (3684, 5778), (3852, 5526)]