1389631726

素因数分解:

$2^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{498791}}^1$

素因数の和:498999

約数の個数: 16

約数和(自身を含む): 2394201600

約数和(自身を除く): 1004569874

約数列:

[1, 2, 7, 14, 199, 398, 1393, 2786, 498791, 997582, 3491537, 6983074, 99259409, 198518818, 694815863, 1389631726]

約数ペア:

[(1, 1389631726), (2, 694815863), (7, 198518818), (14, 99259409), (199, 6983074), (398, 3491537), (1393, 997582), (2786, 498791)]