21187569

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{14683}}^1$

素因数の和:14736

約数の個数: 16

約数和(自身を含む): 31247552

約数和(自身を除く): 10059983

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 14683, 44049, 190879, 543271, 572637, 1629813, 7062523, 21187569]

約数ペア:

[(1, 21187569), (3, 7062523), (13, 1629813), (37, 572637), (39, 543271), (111, 190879), (481, 44049), (1443, 14683)]