21873902

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{5281}}^1$

素因数の和:5411

約数の個数: 16

約数和(自身を含む): 34861200

約数和(自身を除く): 12987298

約数列:

[1, 2, 19, 38, 109, 218, 2071, 4142, 5281, 10562, 100339, 200678, 575629, 1151258, 10936951, 21873902]

約数ペア:

[(1, 21873902), (2, 10936951), (19, 1151258), (38, 575629), (109, 200678), (218, 100339), (2071, 10562), (4142, 5281)]