18663183

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 35389440

約数和(自身を除く): 16726257

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 47, 63, 77, 99, 141, 189, 191, 231, 297, 329, 423, 517, 573, 693, 987, 1269, 1337, 1551, 1719, 2079, 2101, 2961, 3619, 4011, 4653, 5157, 6303, 8883, 8977, 10857, 12033, 13959, 14707, 18909, 26931, 32571, 36099, 44121, 56727, 62839, 80793, 97713, 98747, 132363, 188517, 242379, 296241, 397089, 565551, 691229, 888723, 1696653, 2073687, 2666169, 6221061, 18663183]

約数ペア:

[(1, 18663183), (3, 6221061), (7, 2666169), (9, 2073687), (11, 1696653), (21, 888723), (27, 691229), (33, 565551), (47, 397089), (63, 296241), (77, 242379), (99, 188517), (141, 132363), (189, 98747), (191, 97713), (231, 80793), (297, 62839), (329, 56727), (423, 44121), (517, 36099), (573, 32571), (693, 26931), (987, 18909), (1269, 14707), (1337, 13959), (1551, 12033), (1719, 10857), (2079, 8977), (2101, 8883), (2961, 6303), (3619, 5157), (4011, 4653)]