20814715

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{3449}}^1$

素因数の和:3542

約数の個数: 16

約数和(自身を含む): 26827200

約数和(自身を除く): 6012485

約数列:

[1, 5, 17, 71, 85, 355, 1207, 3449, 6035, 17245, 58633, 244879, 293165, 1224395, 4162943, 20814715]

約数ペア:

[(1, 20814715), (5, 4162943), (17, 1224395), (71, 293165), (85, 244879), (355, 58633), (1207, 17245), (3449, 6035)]