20176689

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{373}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 30997120

約数和(自身を除く): 10820431

約数列:

[1, 3, 13, 19, 39, 57, 73, 219, 247, 373, 741, 949, 1119, 1387, 2847, 4161, 4849, 7087, 14547, 18031, 21261, 27229, 54093, 81687, 92131, 276393, 353977, 517351, 1061931, 1552053, 6725563, 20176689]

約数ペア:

[(1, 20176689), (3, 6725563), (13, 1552053), (19, 1061931), (39, 517351), (57, 353977), (73, 276393), (219, 92131), (247, 81687), (373, 54093), (741, 27229), (949, 21261), (1119, 18031), (1387, 14547), (2847, 7087), (4161, 4849)]