28639197

素因数分解:

$3^3\times {\mathrm{41}}^2\times {\mathrm{631}}^1$

素因数の和:722

約数の個数: 24

約数和(自身を含む): 43557440

約数和(自身を除く): 14918243

約数列:

[1, 3, 9, 27, 41, 123, 369, 631, 1107, 1681, 1893, 5043, 5679, 15129, 17037, 25871, 45387, 77613, 232839, 698517, 1060711, 3182133, 9546399, 28639197]

約数ペア:

[(1, 28639197), (3, 9546399), (9, 3182133), (27, 1060711), (41, 698517), (123, 232839), (369, 77613), (631, 45387), (1107, 25871), (1681, 17037), (1893, 15129), (5043, 5679)]