21760172

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5591}}^1$

素因数の和:5741

約数の個数: 24

約数和(自身を含む): 43841280

約数和(自身を除く): 22081108

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5591, 11182, 22364, 39137, 78274, 156548, 777149, 1554298, 3108596, 5440043, 10880086, 21760172]

約数ペア:

[(1, 21760172), (2, 10880086), (4, 5440043), (7, 3108596), (14, 1554298), (28, 777149), (139, 156548), (278, 78274), (556, 39137), (973, 22364), (1946, 11182), (3892, 5591)]