18985010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1613}}^1$

素因数の和:1738

約数の個数: 32

約数和(自身を含む): 37651392

約数和(自身を除く): 18666382

約数列:

[1, 2, 5, 10, 11, 22, 55, 107, 110, 214, 535, 1070, 1177, 1613, 2354, 3226, 5885, 8065, 11770, 16130, 17743, 35486, 88715, 172591, 177430, 345182, 862955, 1725910, 1898501, 3797002, 9492505, 18985010]

約数ペア:

[(1, 18985010), (2, 9492505), (5, 3797002), (10, 1898501), (11, 1725910), (22, 862955), (55, 345182), (107, 177430), (110, 172591), (214, 88715), (535, 35486), (1070, 17743), (1177, 16130), (1613, 11770), (2354, 8065), (3226, 5885)]