81808539

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{719}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 121927680

約数和(自身を除く): 40119141

約数列:

[1, 3, 17, 23, 51, 69, 97, 291, 391, 719, 1173, 1649, 2157, 2231, 4947, 6693, 12223, 16537, 36669, 37927, 49611, 69743, 113781, 209229, 281129, 843387, 1185631, 1604089, 3556893, 4812267, 27269513, 81808539]

約数ペア:

[(1, 81808539), (3, 27269513), (17, 4812267), (23, 3556893), (51, 1604089), (69, 1185631), (97, 843387), (291, 281129), (391, 209229), (719, 113781), (1173, 69743), (1649, 49611), (2157, 37927), (2231, 36669), (4947, 16537), (6693, 12223)]