21023210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{161717}}^1$

素因数の和:161737

約数の個数: 16

約数和(自身を含む): 40752936

約数和(自身を除く): 19729726

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 161717, 323434, 808585, 1617170, 2102321, 4204642, 10511605, 21023210]

約数ペア:

[(1, 21023210), (2, 10511605), (5, 4204642), (10, 2102321), (13, 1617170), (26, 808585), (65, 323434), (130, 161717)]