21367185

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{4153}}^1$

素因数の和:4182

約数の個数: 32

約数和(自身を含む): 39878400

約数和(自身を除く): 18511215

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 4153, 5145, 12459, 20765, 29071, 62295, 87213, 145355, 203497, 436065, 610491, 1017485, 1424479, 3052455, 4273437, 7122395, 21367185]

約数ペア:

[(1, 21367185), (3, 7122395), (5, 4273437), (7, 3052455), (15, 1424479), (21, 1017485), (35, 610491), (49, 436065), (105, 203497), (147, 145355), (245, 87213), (343, 62295), (735, 29071), (1029, 20765), (1715, 12459), (4153, 5145)]