19996977

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6659}}^1$

素因数の和:6693

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 15807183

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 6659, 19977, 46613, 73249, 86567, 139839, 219747, 259701, 512743, 605969, 952237, 1538229, 1817907, 2856711, 6665659, 19996977]

約数ペア:

[(1, 19996977), (3, 6665659), (7, 2856711), (11, 1817907), (13, 1538229), (21, 952237), (33, 605969), (39, 512743), (77, 259701), (91, 219747), (143, 139839), (231, 86567), (273, 73249), (429, 46613), (1001, 19977), (3003, 6659)]