21371856

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2381}}^1$

素因数の和:2420

約数の個数: 80

約数和(自身を含む): 63799488

約数和(自身を除く): 42427632

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 17, 22, 24, 33, 34, 44, 48, 51, 66, 68, 88, 102, 132, 136, 176, 187, 204, 264, 272, 374, 408, 528, 561, 748, 816, 1122, 1496, 2244, 2381, 2992, 4488, 4762, 7143, 8976, 9524, 14286, 19048, 26191, 28572, 38096, 40477, 52382, 57144, 78573, 80954, 104764, 114288, 121431, 157146, 161908, 209528, 242862, 314292, 323816, 419056, 445247, 485724, 628584, 647632, 890494, 971448, 1257168, 1335741, 1780988, 1942896, 2671482, 3561976, 5342964, 7123952, 10685928, 21371856]

約数ペア:

[(1, 21371856), (2, 10685928), (3, 7123952), (4, 5342964), (6, 3561976), (8, 2671482), (11, 1942896), (12, 1780988), (16, 1335741), (17, 1257168), (22, 971448), (24, 890494), (33, 647632), (34, 628584), (44, 485724), (48, 445247), (51, 419056), (66, 323816), (68, 314292), (88, 242862), (102, 209528), (132, 161908), (136, 157146), (176, 121431), (187, 114288), (204, 104764), (264, 80954), (272, 78573), (374, 57144), (408, 52382), (528, 40477), (561, 38096), (748, 28572), (816, 26191), (1122, 19048), (1496, 14286), (2244, 9524), (2381, 8976), (2992, 7143), (4488, 4762)]