21000751954

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{115388747}}^1$

素因数の和:115388769

約数の個数: 16

約数和(自身を含む): 38770619328

約数和(自身を除く): 17769867374

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 115388747, 230777494, 807721229, 1500053711, 1615442458, 3000107422, 10500375977, 21000751954]

約数ペア:

[(1, 21000751954), (2, 10500375977), (7, 3000107422), (13, 1615442458), (14, 1500053711), (26, 807721229), (91, 230777494), (182, 115388747)]