21593937

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 30821376

約数和(自身を除く): 9227439

約数列:

[1, 3, 19, 57, 127, 157, 361, 381, 471, 1083, 2413, 2983, 7239, 8949, 19939, 45847, 56677, 59817, 137541, 170031, 378841, 1136523, 7197979, 21593937]

約数ペア:

[(1, 21593937), (3, 7197979), (19, 1136523), (57, 378841), (127, 170031), (157, 137541), (361, 59817), (381, 56677), (471, 45847), (1083, 19939), (2413, 8949), (2983, 7239)]