19971903

素因数分解:

$3^1\times 7^1\times {\mathrm{461}}^1\times {\mathrm{2063}}^1$

素因数の和:2534

約数の個数: 16

約数和(自身を含む): 30514176

約数和(自身を除く): 10542273

約数列:

[1, 3, 7, 21, 461, 1383, 2063, 3227, 6189, 9681, 14441, 43323, 951043, 2853129, 6657301, 19971903]

約数ペア:

[(1, 19971903), (3, 6657301), (7, 2853129), (21, 951043), (461, 43323), (1383, 14441), (2063, 9681), (3227, 6189)]