21491842

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:426

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14433278

約数列:

[1, 2, 17, 29, 34, 58, 71, 142, 307, 493, 614, 986, 1207, 2059, 2414, 4118, 5219, 8903, 10438, 17806, 21797, 35003, 43594, 70006, 151351, 302702, 370549, 632113, 741098, 1264226, 10745921, 21491842]

約数ペア:

[(1, 21491842), (2, 10745921), (17, 1264226), (29, 741098), (34, 632113), (58, 370549), (71, 302702), (142, 151351), (307, 70006), (493, 43594), (614, 35003), (986, 21797), (1207, 17806), (2059, 10438), (2414, 8903), (4118, 5219)]