21800355

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{463}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 36258816

約数和(自身を除く): 14458461

約数列:

[1, 3, 5, 15, 43, 73, 129, 215, 219, 365, 463, 645, 1095, 1389, 2315, 3139, 6945, 9417, 15695, 19909, 33799, 47085, 59727, 99545, 101397, 168995, 298635, 506985, 1453357, 4360071, 7266785, 21800355]

約数ペア:

[(1, 21800355), (3, 7266785), (5, 4360071), (15, 1453357), (43, 506985), (73, 298635), (129, 168995), (215, 101397), (219, 99545), (365, 59727), (463, 47085), (645, 33799), (1095, 19909), (1389, 15695), (2315, 9417), (3139, 6945)]