21834820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6781}}^1$

素因数の和:6820

約数の個数: 48

約数和(自身を含む): 54690048

約数和(自身を除く): 32855228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6781, 13562, 27124, 33905, 47467, 67810, 94934, 135620, 155963, 189868, 237335, 311926, 474670, 623852, 779815, 949340, 1091741, 1559630, 2183482, 3119260, 4366964, 5458705, 10917410, 21834820]

約数ペア:

[(1, 21834820), (2, 10917410), (4, 5458705), (5, 4366964), (7, 3119260), (10, 2183482), (14, 1559630), (20, 1091741), (23, 949340), (28, 779815), (35, 623852), (46, 474670), (70, 311926), (92, 237335), (115, 189868), (140, 155963), (161, 135620), (230, 94934), (322, 67810), (460, 47467), (644, 33905), (805, 27124), (1610, 13562), (3220, 6781)]