21797111

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:359

約数の個数: 24

約数和(自身を含む): 27184896

約数和(自身を除く): 5387785

約数列:

[1, 7, 17, 49, 119, 137, 191, 833, 959, 1337, 2329, 3247, 6713, 9359, 16303, 22729, 26167, 114121, 159103, 183169, 444839, 1282183, 3113873, 21797111]

約数ペア:

[(1, 21797111), (7, 3113873), (17, 1282183), (49, 444839), (119, 183169), (137, 159103), (191, 114121), (833, 26167), (959, 22729), (1337, 16303), (2329, 9359), (3247, 6713)]