1621998

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{613}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 4199760

約数和(自身を除く): 2577762

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 378, 441, 613, 882, 1226, 1323, 1839, 2646, 3678, 4291, 5517, 8582, 11034, 12873, 16551, 25746, 30037, 33102, 38619, 60074, 77238, 90111, 115857, 180222, 231714, 270333, 540666, 810999, 1621998]

約数ペア:

[(1, 1621998), (2, 810999), (3, 540666), (6, 270333), (7, 231714), (9, 180222), (14, 115857), (18, 90111), (21, 77238), (27, 60074), (42, 38619), (49, 33102), (54, 30037), (63, 25746), (98, 16551), (126, 12873), (147, 11034), (189, 8582), (294, 5517), (378, 4291), (441, 3678), (613, 2646), (882, 1839), (1226, 1323)]