21568136

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{193}}^1\times {\mathrm{229}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 41496600

約数和(自身を除く): 19928464

約数列:

[1, 2, 4, 8, 61, 122, 193, 229, 244, 386, 458, 488, 772, 916, 1544, 1832, 11773, 13969, 23546, 27938, 44197, 47092, 55876, 88394, 94184, 111752, 176788, 353576, 2696017, 5392034, 10784068, 21568136]

約数ペア:

[(1, 21568136), (2, 10784068), (4, 5392034), (8, 2696017), (61, 353576), (122, 176788), (193, 111752), (229, 94184), (244, 88394), (386, 55876), (458, 47092), (488, 44197), (772, 27938), (916, 23546), (1544, 13969), (1832, 11773)]