18197225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{911}}^1$

素因数の和:985

約数の個数: 24

約数和(自身を含む): 24427008

約数和(自身を除く): 6229783

約数列:

[1, 5, 17, 25, 47, 85, 235, 425, 799, 911, 1175, 3995, 4555, 15487, 19975, 22775, 42817, 77435, 214085, 387175, 727889, 1070425, 3639445, 18197225]

約数ペア:

[(1, 18197225), (5, 3639445), (17, 1070425), (25, 727889), (47, 387175), (85, 214085), (235, 77435), (425, 42817), (799, 22775), (911, 19975), (1175, 15487), (3995, 4555)]