697221

素因数分解:

$3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:71

約数の個数: 48

約数和(自身を含む): 1313280

約数和(自身を除く): 616059

約数列:

[1, 3, 7, 9, 17, 21, 27, 31, 49, 51, 63, 93, 119, 147, 153, 189, 217, 279, 357, 441, 459, 527, 651, 833, 837, 1071, 1323, 1519, 1581, 1953, 2499, 3213, 3689, 4557, 4743, 5859, 7497, 11067, 13671, 14229, 22491, 25823, 33201, 41013, 77469, 99603, 232407, 697221]

約数ペア:

[(1, 697221), (3, 232407), (7, 99603), (9, 77469), (17, 41013), (21, 33201), (27, 25823), (31, 22491), (49, 14229), (51, 13671), (63, 11067), (93, 7497), (119, 5859), (147, 4743), (153, 4557), (189, 3689), (217, 3213), (279, 2499), (357, 1953), (441, 1581), (459, 1519), (527, 1323), (651, 1071), (833, 837)]