138889306

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1\times {\mathrm{3499}}^1$

素因数の和:3813

約数の個数: 16

約数和(自身を含む): 211680000

約数和(自身を除く): 72790694

約数列:

[1, 2, 89, 178, 223, 446, 3499, 6998, 19847, 39694, 311411, 622822, 780277, 1560554, 69444653, 138889306]

約数ペア:

[(1, 138889306), (2, 69444653), (89, 1560554), (178, 780277), (223, 622822), (446, 311411), (3499, 39694), (6998, 19847)]