81238878

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{644753}}^1$

素因数の和:644768

約数の個数: 24

約数和(自身を含む): 201163248

約数和(自身を除く): 119924370

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 644753, 1289506, 1934259, 3868518, 4513271, 5802777, 9026542, 11605554, 13539813, 27079626, 40619439, 81238878]

約数ペア:

[(1, 81238878), (2, 40619439), (3, 27079626), (6, 13539813), (7, 11605554), (9, 9026542), (14, 5802777), (18, 4513271), (21, 3868518), (42, 1934259), (63, 1289506), (126, 644753)]