216389715

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{173807}}^1$

素因数の和:173898

約数の個数: 16

約数和(自身を含む): 350396928

約数和(自身を除く): 134007213

約数列:

[1, 3, 5, 15, 83, 249, 415, 1245, 173807, 521421, 869035, 2607105, 14425981, 43277943, 72129905, 216389715]

約数ペア:

[(1, 216389715), (3, 72129905), (5, 43277943), (15, 14425981), (83, 2607105), (249, 869035), (415, 521421), (1245, 173807)]