278803587

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{2689}}^1$

素因数の和:2835

約数の個数: 32

約数和(自身を含む): 418348800

約数和(自身を除く): 139545213

約数列:

[1, 3, 17, 19, 51, 57, 107, 321, 323, 969, 1819, 2033, 2689, 5457, 6099, 8067, 34561, 45713, 51091, 103683, 137139, 153273, 287723, 863169, 868547, 2605641, 4891291, 5466737, 14673873, 16400211, 92934529, 278803587]

約数ペア:

[(1, 278803587), (3, 92934529), (17, 16400211), (19, 14673873), (51, 5466737), (57, 4891291), (107, 2605641), (321, 868547), (323, 863169), (969, 287723), (1819, 153273), (2033, 137139), (2689, 103683), (5457, 51091), (6099, 45713), (8067, 34561)]