28172133

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{7691}}^1$

素因数の和:7745

約数の個数: 24

約数和(自身を含む): 45598176

約数和(自身を除く): 17426043

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 3663, 7691, 23073, 69219, 84601, 253803, 284567, 761409, 853701, 2561103, 3130237, 9390711, 28172133]

約数ペア:

[(1, 28172133), (3, 9390711), (9, 3130237), (11, 2561103), (33, 853701), (37, 761409), (99, 284567), (111, 253803), (333, 84601), (407, 69219), (1221, 23073), (3663, 7691)]