17805987

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:289

約数の個数: 40

約数和(自身を含む): 28732176

約数和(自身を除く): 10926189

約数列:

[1, 3, 9, 17, 27, 51, 67, 81, 153, 193, 201, 459, 579, 603, 1139, 1377, 1737, 1809, 3281, 3417, 5211, 5427, 9843, 10251, 12931, 15633, 29529, 30753, 38793, 88587, 92259, 116379, 219827, 265761, 349137, 659481, 1047411, 1978443, 5935329, 17805987]

約数ペア:

[(1, 17805987), (3, 5935329), (9, 1978443), (17, 1047411), (27, 659481), (51, 349137), (67, 265761), (81, 219827), (153, 116379), (193, 92259), (201, 88587), (459, 38793), (579, 30753), (603, 29529), (1139, 15633), (1377, 12931), (1737, 10251), (1809, 9843), (3281, 5427), (3417, 5211)]