18853345

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 26938368

約数和(自身を除く): 8085023

約数列:

[1, 5, 7, 35, 47, 73, 157, 235, 329, 365, 511, 785, 1099, 1645, 2555, 3431, 5495, 7379, 11461, 17155, 24017, 36895, 51653, 57305, 80227, 120085, 258265, 401135, 538667, 2693335, 3770669, 18853345]

約数ペア:

[(1, 18853345), (5, 3770669), (7, 2693335), (35, 538667), (47, 401135), (73, 258265), (157, 120085), (235, 80227), (329, 57305), (365, 51653), (511, 36895), (785, 24017), (1099, 17155), (1645, 11461), (2555, 7379), (3431, 5495)]