21123156

素因数分解:

$2^2\times 3^1\times {\mathrm{251}}^1\times {\mathrm{7013}}^1$

素因数の和:7271

約数の個数: 24

約数和(自身を含む): 49490784

約数和(自身を除く): 28367628

約数列:

[1, 2, 3, 4, 6, 12, 251, 502, 753, 1004, 1506, 3012, 7013, 14026, 21039, 28052, 42078, 84156, 1760263, 3520526, 5280789, 7041052, 10561578, 21123156]

約数ペア:

[(1, 21123156), (2, 10561578), (3, 7041052), (4, 5280789), (6, 3520526), (12, 1760263), (251, 84156), (502, 42078), (753, 28052), (1004, 21039), (1506, 14026), (3012, 7013)]