18702805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 26345088

約数和(自身を除く): 7642283

約数列:

[1, 5, 11, 17, 55, 83, 85, 187, 241, 415, 913, 935, 1205, 1411, 2651, 4097, 4565, 7055, 13255, 15521, 20003, 20485, 45067, 77605, 100015, 220033, 225335, 340051, 1100165, 1700255, 3740561, 18702805]

約数ペア:

[(1, 18702805), (5, 3740561), (11, 1700255), (17, 1100165), (55, 340051), (83, 225335), (85, 220033), (187, 100015), (241, 77605), (415, 45067), (913, 20485), (935, 20003), (1205, 15521), (1411, 13255), (2651, 7055), (4097, 4565)]