21820418

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{12109}}^1$

素因数の和:12181

約数の個数: 16

約数和(自身を含む): 35312760

約数和(自身を除く): 13492342

約数列:

[1, 2, 17, 34, 53, 106, 901, 1802, 12109, 24218, 205853, 411706, 641777, 1283554, 10910209, 21820418]

約数ペア:

[(1, 21820418), (2, 10910209), (17, 1283554), (34, 641777), (53, 411706), (106, 205853), (901, 24218), (1802, 12109)]