20498555

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1439}}^1$

素因数の和:1499

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 11020165

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 185, 259, 385, 407, 1295, 1439, 2035, 2849, 7195, 10073, 14245, 15829, 50365, 53243, 79145, 110803, 266215, 372701, 554015, 585673, 1863505, 2928365, 4099711, 20498555]

約数ペア:

[(1, 20498555), (5, 4099711), (7, 2928365), (11, 1863505), (35, 585673), (37, 554015), (55, 372701), (77, 266215), (185, 110803), (259, 79145), (385, 53243), (407, 50365), (1295, 15829), (1439, 14245), (2035, 10073), (2849, 7195)]