21541329

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:758

約数の個数: 32

約数和(自身を含む): 34318080

約数和(自身を除く): 12776751

約数列:

[1, 3, 9, 17, 27, 51, 71, 153, 213, 459, 639, 661, 1207, 1917, 1983, 3621, 5949, 10863, 11237, 17847, 32589, 33711, 46931, 101133, 140793, 303399, 422379, 797827, 1267137, 2393481, 7180443, 21541329]

約数ペア:

[(1, 21541329), (3, 7180443), (9, 2393481), (17, 1267137), (27, 797827), (51, 422379), (71, 303399), (153, 140793), (213, 101133), (459, 46931), (639, 33711), (661, 32589), (1207, 17847), (1917, 11237), (1983, 10863), (3621, 5949)]