20926172

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{617}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 37549680

約数和(自身を除く): 16623508

約数列:

[1, 2, 4, 61, 122, 139, 244, 278, 556, 617, 1234, 2468, 8479, 16958, 33916, 37637, 75274, 85763, 150548, 171526, 343052, 5231543, 10463086, 20926172]

約数ペア:

[(1, 20926172), (2, 10463086), (4, 5231543), (61, 343052), (122, 171526), (139, 150548), (244, 85763), (278, 75274), (556, 37637), (617, 33916), (1234, 16958), (2468, 8479)]