19380621

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{7417}}^1$

素因数の和:7500

約数の個数: 16

約数和(自身を含む): 28247744

約数和(自身を除く): 8867123

約数列:

[1, 3, 13, 39, 67, 201, 871, 2613, 7417, 22251, 96421, 289263, 496939, 1490817, 6460207, 19380621]

約数ペア:

[(1, 19380621), (3, 6460207), (13, 1490817), (39, 496939), (67, 289263), (201, 96421), (871, 22251), (2613, 7417)]