25490003

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 8655277

約数列:

[1, 7, 11, 23, 37, 77, 161, 253, 259, 389, 407, 851, 1771, 2723, 2849, 4279, 5957, 8947, 9361, 14393, 29953, 62629, 65527, 98417, 100751, 158323, 331039, 688919, 1108261, 2317273, 3641429, 25490003]

約数ペア:

[(1, 25490003), (7, 3641429), (11, 2317273), (23, 1108261), (37, 688919), (77, 331039), (161, 158323), (253, 100751), (259, 98417), (389, 65527), (407, 62629), (851, 29953), (1771, 14393), (2723, 9361), (2849, 8947), (4279, 5957)]