18868487

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 23514624

約数和(自身を除く): 4646137

約数列:

[1, 11, 17, 23, 41, 107, 187, 253, 391, 451, 697, 943, 1177, 1819, 2461, 4301, 4387, 7667, 10373, 16031, 20009, 27071, 41837, 48257, 74579, 100901, 176341, 460207, 820369, 1109911, 1715317, 18868487]

約数ペア:

[(1, 18868487), (11, 1715317), (17, 1109911), (23, 820369), (41, 460207), (107, 176341), (187, 100901), (253, 74579), (391, 48257), (451, 41837), (697, 27071), (943, 20009), (1177, 16031), (1819, 10373), (2461, 7667), (4301, 4387)]