28507581

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3877}}^1$

素因数の和:3945

約数の個数: 24

約数和(自身を含む): 44364320

約数和(自身を除く): 15856739

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 3877, 7353, 11631, 34893, 73663, 166711, 220989, 500133, 662967, 1500399, 3167509, 9502527, 28507581]

約数ペア:

[(1, 28507581), (3, 9502527), (9, 3167509), (19, 1500399), (43, 662967), (57, 500133), (129, 220989), (171, 166711), (387, 73663), (817, 34893), (2451, 11631), (3877, 7353)]