20870759

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12071}}^1$

素因数の和:12110

約数の個数: 16

約数和(自身を含む): 27041280

約数和(自身を除く): 6170521

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 12071, 84497, 156923, 229349, 1098461, 1605443, 2981537, 20870759]

約数ペア:

[(1, 20870759), (7, 2981537), (13, 1605443), (19, 1098461), (91, 229349), (133, 156923), (247, 84497), (1729, 12071)]