2178117590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19801069}}^1$

素因数の和:19801087

約数の個数: 16

約数和(自身を含む): 4277031120

約数和(自身を除く): 2098913530

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 19801069, 39602138, 99005345, 198010690, 217811759, 435623518, 1089058795, 2178117590]

約数ペア:

[(1, 2178117590), (2, 1089058795), (5, 435623518), (10, 217811759), (11, 198010690), (22, 99005345), (55, 39602138), (110, 19801069)]