18888955

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{3643}}^1$

素因数の和:3726

約数の個数: 16

約数和(自身を含む): 24400224

約数和(自身を除く): 5511269

約数列:

[1, 5, 17, 61, 85, 305, 1037, 3643, 5185, 18215, 61931, 222223, 309655, 1111115, 3777791, 18888955]

約数ペア:

[(1, 18888955), (5, 3777791), (17, 1111115), (61, 309655), (85, 222223), (305, 61931), (1037, 18215), (3643, 5185)]