18486818

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:207

約数の個数: 48

約数和(自身を含む): 34128864

約数和(自身を除く): 15642046

約数列:

[1, 2, 7, 14, 41, 43, 49, 82, 86, 98, 107, 214, 287, 301, 574, 602, 749, 1498, 1763, 2009, 2107, 3526, 4018, 4214, 4387, 4601, 5243, 8774, 9202, 10486, 12341, 24682, 30709, 32207, 61418, 64414, 86387, 172774, 188641, 214963, 225449, 377282, 429926, 450898, 1320487, 2640974, 9243409, 18486818]

約数ペア:

[(1, 18486818), (2, 9243409), (7, 2640974), (14, 1320487), (41, 450898), (43, 429926), (49, 377282), (82, 225449), (86, 214963), (98, 188641), (107, 172774), (214, 86387), (287, 64414), (301, 61418), (574, 32207), (602, 30709), (749, 24682), (1498, 12341), (1763, 10486), (2009, 9202), (2107, 8774), (3526, 5243), (4018, 4601), (4214, 4387)]