20168421

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73877}}^1$

素因数の和:73900

約数の個数: 16

約数和(自身を含む): 33097344

約数和(自身を除く): 12928923

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 73877, 221631, 517139, 960401, 1551417, 2881203, 6722807, 20168421]

約数ペア:

[(1, 20168421), (3, 6722807), (7, 2881203), (13, 1551417), (21, 960401), (39, 517139), (91, 221631), (273, 73877)]