219325988

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{128411}}^1$

素因数の和:128483

約数の個数: 24

約数和(自身を含む): 445846464

約数和(自身を除く): 226520476

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 128411, 256822, 513644, 898877, 1797754, 3595508, 7833071, 15666142, 31332284, 54831497, 109662994, 219325988]

約数ペア:

[(1, 219325988), (2, 109662994), (4, 54831497), (7, 31332284), (14, 15666142), (28, 7833071), (61, 3595508), (122, 1797754), (244, 898877), (427, 513644), (854, 256822), (1708, 128411)]