21055902

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:413

約数の個数: 64

約数和(自身を含む): 51093504

約数和(自身を除く): 30037602

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 71, 138, 142, 161, 213, 307, 322, 426, 483, 497, 614, 921, 966, 994, 1491, 1633, 1842, 2149, 2982, 3266, 4298, 4899, 6447, 7061, 9798, 11431, 12894, 14122, 21183, 21797, 22862, 34293, 42366, 43594, 49427, 65391, 68586, 98854, 130782, 148281, 152579, 296562, 305158, 457737, 501331, 915474, 1002662, 1503993, 3007986, 3509317, 7018634, 10527951, 21055902]

約数ペア:

[(1, 21055902), (2, 10527951), (3, 7018634), (6, 3509317), (7, 3007986), (14, 1503993), (21, 1002662), (23, 915474), (42, 501331), (46, 457737), (69, 305158), (71, 296562), (138, 152579), (142, 148281), (161, 130782), (213, 98854), (307, 68586), (322, 65391), (426, 49427), (483, 43594), (497, 42366), (614, 34293), (921, 22862), (966, 21797), (994, 21183), (1491, 14122), (1633, 12894), (1842, 11431), (2149, 9798), (2982, 7061), (3266, 6447), (4298, 4899)]