17972315

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{317}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 24727680

約数和(自身を除く): 6755365

約数列:

[1, 5, 17, 23, 29, 85, 115, 145, 317, 391, 493, 667, 1585, 1955, 2465, 3335, 5389, 7291, 9193, 11339, 26945, 36455, 45965, 56695, 123947, 156281, 211439, 619735, 781405, 1057195, 3594463, 17972315]

約数ペア:

[(1, 17972315), (5, 3594463), (17, 1057195), (23, 781405), (29, 619735), (85, 211439), (115, 156281), (145, 123947), (317, 56695), (391, 45965), (493, 36455), (667, 26945), (1585, 11339), (1955, 9193), (2465, 7291), (3335, 5389)]