20578402

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{8893}}^1$

素因数の和:8997

約数の個数: 16

約数和(自身を含む): 33619320

約数和(自身を除く): 13040918

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 8893, 17786, 115609, 231218, 791477, 1582954, 10289201, 20578402]

約数ペア:

[(1, 20578402), (2, 10289201), (13, 1582954), (26, 791477), (89, 231218), (178, 115609), (1157, 17786), (2314, 8893)]