19663007

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1249}}^1$

素因数の和:1442

約数の個数: 16

約数和(自身を含む): 24360000

約数和(自身を除く): 4696993

約数列:

[1, 7, 13, 91, 173, 1211, 1249, 2249, 8743, 15743, 16237, 113659, 216077, 1512539, 2809001, 19663007]

約数ペア:

[(1, 19663007), (7, 2809001), (13, 1512539), (91, 216077), (173, 113659), (1211, 16237), (1249, 15743), (2249, 8743)]