21189363

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1747}}^1$

素因数の和:2074

約数の個数: 16

約数和(自身を含む): 30541056

約数和(自身を除く): 9351693

約数列:

[1, 3, 13, 39, 311, 933, 1747, 4043, 5241, 12129, 22711, 68133, 543317, 1629951, 7063121, 21189363]

約数ペア:

[(1, 21189363), (3, 7063121), (13, 1629951), (39, 543317), (311, 68133), (933, 22711), (1747, 12129), (4043, 5241)]