21259630

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1009}}^1$

素因数の和:1073

約数の個数: 48

約数和(自身を含む): 45595440

約数和(自身を除く): 24335810

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 49, 70, 86, 98, 215, 245, 301, 430, 490, 602, 1009, 1505, 2018, 2107, 3010, 4214, 5045, 7063, 10090, 10535, 14126, 21070, 35315, 43387, 49441, 70630, 86774, 98882, 216935, 247205, 303709, 433870, 494410, 607418, 1518545, 2125963, 3037090, 4251926, 10629815, 21259630]

約数ペア:

[(1, 21259630), (2, 10629815), (5, 4251926), (7, 3037090), (10, 2125963), (14, 1518545), (35, 607418), (43, 494410), (49, 433870), (70, 303709), (86, 247205), (98, 216935), (215, 98882), (245, 86774), (301, 70630), (430, 49441), (490, 43387), (602, 35315), (1009, 21070), (1505, 14126), (2018, 10535), (2107, 10090), (3010, 7063), (4214, 5045)]