81589249

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{83}}^1\times {\mathrm{389}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 99852480

約数和(自身を除く): 18263231

約数列:

[1, 7, 19, 83, 133, 361, 389, 581, 1577, 2527, 2723, 7391, 11039, 29963, 32287, 51737, 140429, 209741, 226009, 613453, 983003, 4294171, 11655607, 81589249]

約数ペア:

[(1, 81589249), (7, 11655607), (19, 4294171), (83, 983003), (133, 613453), (361, 226009), (389, 209741), (581, 140429), (1577, 51737), (2527, 32287), (2723, 29963), (7391, 11039)]