661878

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:138

約数の個数: 64

約数和(自身を含む): 1797120

約数和(自身を除く): 1135242

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 27, 34, 42, 51, 54, 63, 102, 103, 119, 126, 153, 189, 206, 238, 306, 309, 357, 378, 459, 618, 714, 721, 918, 927, 1071, 1442, 1751, 1854, 2142, 2163, 2781, 3213, 3502, 4326, 5253, 5562, 6426, 6489, 10506, 12257, 12978, 15759, 19467, 24514, 31518, 36771, 38934, 47277, 73542, 94554, 110313, 220626, 330939, 661878]

約数ペア:

[(1, 661878), (2, 330939), (3, 220626), (6, 110313), (7, 94554), (9, 73542), (14, 47277), (17, 38934), (18, 36771), (21, 31518), (27, 24514), (34, 19467), (42, 15759), (51, 12978), (54, 12257), (63, 10506), (102, 6489), (103, 6426), (119, 5562), (126, 5253), (153, 4326), (189, 3502), (206, 3213), (238, 2781), (306, 2163), (309, 2142), (357, 1854), (378, 1751), (459, 1442), (618, 1071), (714, 927), (721, 918)]