21989492

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9941}}^1$

素因数の和:10031

約数の個数: 24

約数和(自身を含む): 44540160

約数和(自身を除く): 22550668

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9941, 19882, 39764, 69587, 139174, 278348, 785339, 1570678, 3141356, 5497373, 10994746, 21989492]

約数ペア:

[(1, 21989492), (2, 10994746), (4, 5497373), (7, 3141356), (14, 1570678), (28, 785339), (79, 278348), (158, 139174), (316, 69587), (553, 39764), (1106, 19882), (2212, 9941)]