21298270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{181}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 45156384

約数和(自身を除く): 23858114

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 181, 205, 287, 362, 410, 574, 905, 1267, 1435, 1681, 1810, 2534, 2870, 3362, 6335, 7421, 8405, 11767, 12670, 14842, 16810, 23534, 37105, 51947, 58835, 74210, 103894, 117670, 259735, 304261, 519470, 608522, 1521305, 2129827, 3042610, 4259654, 10649135, 21298270]

約数ペア:

[(1, 21298270), (2, 10649135), (5, 4259654), (7, 3042610), (10, 2129827), (14, 1521305), (35, 608522), (41, 519470), (70, 304261), (82, 259735), (181, 117670), (205, 103894), (287, 74210), (362, 58835), (410, 51947), (574, 37105), (905, 23534), (1267, 16810), (1435, 14842), (1681, 12670), (1810, 11767), (2534, 8405), (2870, 7421), (3362, 6335)]