21251438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{5413}}^1$

素因数の和:5579

約数の個数: 16

約数和(自身を含む): 34562976

約数和(自身を除く): 13311538

約数列:

[1, 2, 13, 26, 151, 302, 1963, 3926, 5413, 10826, 70369, 140738, 817363, 1634726, 10625719, 21251438]

約数ペア:

[(1, 21251438), (2, 10625719), (13, 1634726), (26, 817363), (151, 140738), (302, 70369), (1963, 10826), (3926, 5413)]