21880838

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{797}}^1$

素因数の和:896

約数の個数: 32

約数和(自身を含む): 39299904

約数和(自身を除く): 17419066

約数列:

[1, 2, 7, 14, 37, 53, 74, 106, 259, 371, 518, 742, 797, 1594, 1961, 3922, 5579, 11158, 13727, 27454, 29489, 42241, 58978, 84482, 206423, 295687, 412846, 591374, 1562917, 3125834, 10940419, 21880838]

約数ペア:

[(1, 21880838), (2, 10940419), (7, 3125834), (14, 1562917), (37, 591374), (53, 412846), (74, 295687), (106, 206423), (259, 84482), (371, 58978), (518, 42241), (742, 29489), (797, 27454), (1594, 13727), (1961, 11158), (3922, 5579)]