21217713

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{58451}}^1$

素因数の和:58476

約数の個数: 12

約数和(自身を含む): 31096464

約数和(自身を除く): 9878751

約数列:

[1, 3, 11, 33, 121, 363, 58451, 175353, 642961, 1928883, 7072571, 21217713]

約数ペア:

[(1, 21217713), (3, 7072571), (11, 1928883), (33, 642961), (121, 175353), (363, 58451)]