21115094

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 22430506

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 53, 77, 91, 106, 143, 154, 182, 199, 286, 371, 398, 583, 689, 742, 1001, 1166, 1378, 1393, 2002, 2189, 2587, 2786, 4081, 4378, 4823, 5174, 7579, 8162, 9646, 10547, 15158, 15323, 18109, 21094, 28457, 30646, 36218, 53053, 56914, 73829, 106106, 116017, 137111, 147658, 199199, 232034, 274222, 398398, 812119, 959777, 1508221, 1624238, 1919554, 3016442, 10557547, 21115094]

約数ペア:

[(1, 21115094), (2, 10557547), (7, 3016442), (11, 1919554), (13, 1624238), (14, 1508221), (22, 959777), (26, 812119), (53, 398398), (77, 274222), (91, 232034), (106, 199199), (143, 147658), (154, 137111), (182, 116017), (199, 106106), (286, 73829), (371, 56914), (398, 53053), (583, 36218), (689, 30646), (742, 28457), (1001, 21094), (1166, 18109), (1378, 15323), (1393, 15158), (2002, 10547), (2189, 9646), (2587, 8162), (2786, 7579), (4081, 5174), (4378, 4823)]