16640491

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1367}}^1$

素因数の和:1458

約数の個数: 16

約数和(自身を含む): 19961856

約数和(自身を除く): 3321365

約数列:

[1, 7, 37, 47, 259, 329, 1367, 1739, 9569, 12173, 50579, 64249, 354053, 449743, 2377213, 16640491]

約数ペア:

[(1, 16640491), (7, 2377213), (37, 449743), (47, 354053), (259, 64249), (329, 50579), (1367, 12173), (1739, 9569)]