20406474

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4481}}^1$

素因数の和:4523

約数の個数: 48

約数和(自身を含む): 50341824

約数和(自身を除く): 29935350

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 23, 33, 46, 66, 69, 99, 138, 198, 207, 253, 414, 506, 759, 1518, 2277, 4481, 4554, 8962, 13443, 26886, 40329, 49291, 80658, 98582, 103063, 147873, 206126, 295746, 309189, 443619, 618378, 887238, 927567, 1133693, 1855134, 2267386, 3401079, 6802158, 10203237, 20406474]

約数ペア:

[(1, 20406474), (2, 10203237), (3, 6802158), (6, 3401079), (9, 2267386), (11, 1855134), (18, 1133693), (22, 927567), (23, 887238), (33, 618378), (46, 443619), (66, 309189), (69, 295746), (99, 206126), (138, 147873), (198, 103063), (207, 98582), (253, 80658), (414, 49291), (506, 40329), (759, 26886), (1518, 13443), (2277, 8962), (4481, 4554)]