21673157

素因数分解:

${\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:209

約数の個数: 24

約数和(自身を含む): 25229568

約数和(自身を除く): 3556411

約数列:

[1, 11, 37, 47, 103, 121, 407, 517, 1133, 1739, 3811, 4477, 4841, 5687, 12463, 19129, 41921, 53251, 179117, 210419, 461131, 585761, 1970287, 21673157]

約数ペア:

[(1, 21673157), (11, 1970287), (37, 585761), (47, 461131), (103, 210419), (121, 179117), (407, 53251), (517, 41921), (1133, 19129), (1739, 12463), (3811, 5687), (4477, 4841)]