21167882979

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{1663}}^1\times {\mathrm{249583}}^1$

素因数の和:251266

約数の個数: 16

約数和(自身を含む): 29902159872

約数和(自身を除く): 8734276893

約数列:

[1, 3, 17, 51, 1663, 4989, 28271, 84813, 249583, 748749, 4242911, 12728733, 415056529, 1245169587, 7055960993, 21167882979]

約数ペア:

[(1, 21167882979), (3, 7055960993), (17, 1245169587), (51, 415056529), (1663, 12728733), (4989, 4242911), (28271, 748749), (84813, 249583)]