21150458

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 40027680

約数和(自身を除く): 18877222

約数列:

[1, 2, 7, 14, 19, 37, 38, 49, 74, 98, 133, 259, 266, 307, 518, 614, 703, 931, 1406, 1813, 1862, 2149, 3626, 4298, 4921, 5833, 9842, 11359, 11666, 15043, 22718, 30086, 34447, 40831, 68894, 79513, 81662, 159026, 215821, 285817, 431642, 556591, 571634, 1113182, 1510747, 3021494, 10575229, 21150458]

約数ペア:

[(1, 21150458), (2, 10575229), (7, 3021494), (14, 1510747), (19, 1113182), (37, 571634), (38, 556591), (49, 431642), (74, 285817), (98, 215821), (133, 159026), (259, 81662), (266, 79513), (307, 68894), (518, 40831), (614, 34447), (703, 30086), (931, 22718), (1406, 15043), (1813, 11666), (1862, 11359), (2149, 9842), (3626, 5833), (4298, 4921)]