21388634

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{2393}}^1$

素因数の和:2545

約数の個数: 16

約数和(自身を含む): 33180840

約数和(自身を除く): 11792206

約数列:

[1, 2, 41, 82, 109, 218, 2393, 4469, 4786, 8938, 98113, 196226, 260837, 521674, 10694317, 21388634]

約数ペア:

[(1, 21388634), (2, 10694317), (41, 521674), (82, 260837), (109, 196226), (218, 98113), (2393, 8938), (4469, 4786)]