289737

素因数分解:

$3^4\times 7^2\times {\mathrm{73}}^1$

素因数の和:99

約数の個数: 30

約数和(自身を含む): 510378

約数和(自身を除く): 220641

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 73, 81, 147, 189, 219, 441, 511, 567, 657, 1323, 1533, 1971, 3577, 3969, 4599, 5913, 10731, 13797, 32193, 41391, 96579, 289737]

約数ペア:

[(1, 289737), (3, 96579), (7, 41391), (9, 32193), (21, 13797), (27, 10731), (49, 5913), (63, 4599), (73, 3969), (81, 3577), (147, 1971), (189, 1533), (219, 1323), (441, 657), (511, 567)]