81450201

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{11789}}^1$

素因数の和:11853

約数の個数: 24

約数和(自身を含む): 129029760

約数和(自身を除く): 47579559

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 6909, 11789, 35367, 82523, 247569, 554083, 577661, 1662249, 1732983, 3878581, 11635743, 27150067, 81450201]

約数ペア:

[(1, 81450201), (3, 27150067), (7, 11635743), (21, 3878581), (47, 1732983), (49, 1662249), (141, 577661), (147, 554083), (329, 247569), (987, 82523), (2303, 35367), (6909, 11789)]