18997605

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1163}}^1$

素因数の和:1199

約数の個数: 48

約数和(自身を含む): 37154880

約数和(自身を除く): 18157275

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 99, 121, 135, 165, 297, 363, 495, 605, 1089, 1163, 1485, 1815, 3267, 3489, 5445, 5815, 10467, 12793, 16335, 17445, 31401, 38379, 52335, 63965, 115137, 140723, 157005, 191895, 345411, 422169, 575685, 703615, 1266507, 1727055, 2110845, 3799521, 6332535, 18997605]

約数ペア:

[(1, 18997605), (3, 6332535), (5, 3799521), (9, 2110845), (11, 1727055), (15, 1266507), (27, 703615), (33, 575685), (45, 422169), (55, 345411), (99, 191895), (121, 157005), (135, 140723), (165, 115137), (297, 63965), (363, 52335), (495, 38379), (605, 31401), (1089, 17445), (1163, 16335), (1485, 12793), (1815, 10467), (3267, 5815), (3489, 5445)]