20404461

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4649}}^1$

素因数の和:4689

約数の個数: 32

約数和(自身を含む): 35712000

約数和(自身を除く): 15307539

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 209, 231, 399, 627, 1463, 4389, 4649, 13947, 32543, 51139, 88331, 97629, 153417, 264993, 357973, 618317, 971641, 1073919, 1854951, 2914923, 6801487, 20404461]

約数ペア:

[(1, 20404461), (3, 6801487), (7, 2914923), (11, 1854951), (19, 1073919), (21, 971641), (33, 618317), (57, 357973), (77, 264993), (133, 153417), (209, 97629), (231, 88331), (399, 51139), (627, 32543), (1463, 13947), (4389, 4649)]