21271742

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{2539}}^1$

素因数の和:2671

約数の個数: 16

約数和(自身を含む): 32918400

約数和(自身を除く): 11646658

約数列:

[1, 2, 59, 71, 118, 142, 2539, 4189, 5078, 8378, 149801, 180269, 299602, 360538, 10635871, 21271742]

約数ペア:

[(1, 21271742), (2, 10635871), (59, 360538), (71, 299602), (118, 180269), (142, 149801), (2539, 8378), (4189, 5078)]