21871527

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{1087}}^1$

素因数の和:1462

約数の個数: 16

約数和(自身を含む): 30812160

約数和(自身を除く): 8940633

約数列:

[1, 3, 19, 57, 353, 1059, 1087, 3261, 6707, 20121, 20653, 61959, 383711, 1151133, 7290509, 21871527]

約数ペア:

[(1, 21871527), (3, 7290509), (19, 1151133), (57, 383711), (353, 61959), (1059, 20653), (1087, 20121), (3261, 6707)]