20421346

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{7309}}^1$

素因数の和:7449

約数の個数: 16

約数和(自身を含む): 33684480

約数和(自身を除く): 13263134

約数列:

[1, 2, 11, 22, 127, 254, 1397, 2794, 7309, 14618, 80399, 160798, 928243, 1856486, 10210673, 20421346]

約数ペア:

[(1, 20421346), (2, 10210673), (11, 1856486), (22, 928243), (127, 160798), (254, 80399), (1397, 14618), (2794, 7309)]