20938555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^2$

素因数の和:235

約数の個数: 24

約数和(自身を含む): 28216944

約数和(自身を除く): 7278389

約数列:

[1, 5, 11, 55, 61, 79, 305, 395, 671, 869, 3355, 4345, 4819, 6241, 24095, 31205, 53009, 68651, 265045, 343255, 380701, 1903505, 4187711, 20938555]

約数ペア:

[(1, 20938555), (5, 4187711), (11, 1903505), (55, 380701), (61, 343255), (79, 265045), (305, 68651), (395, 53009), (671, 31205), (869, 24095), (3355, 6241), (4345, 4819)]