278884197

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{5501}}^1$

素因数の和:5681

約数の個数: 24

約数和(自身を含む): 415423008

約数和(自身を除く): 136538811

約数列:

[1, 3, 9, 43, 129, 131, 387, 393, 1179, 5501, 5633, 16503, 16899, 49509, 50697, 236543, 709629, 720631, 2128887, 2161893, 6485679, 30987133, 92961399, 278884197]

約数ペア:

[(1, 278884197), (3, 92961399), (9, 30987133), (43, 6485679), (129, 2161893), (131, 2128887), (387, 720631), (393, 709629), (1179, 236543), (5501, 50697), (5633, 49509), (16503, 16899)]