7784889

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 12672000

約数和(自身を除く): 4887111

約数列:

[1, 3, 7, 19, 21, 57, 109, 133, 179, 327, 399, 537, 763, 1253, 2071, 2289, 3401, 3759, 6213, 10203, 14497, 19511, 23807, 43491, 58533, 71421, 136577, 370709, 409731, 1112127, 2594963, 7784889]

約数ペア:

[(1, 7784889), (3, 2594963), (7, 1112127), (19, 409731), (21, 370709), (57, 136577), (109, 71421), (133, 58533), (179, 43491), (327, 23807), (399, 19511), (537, 14497), (763, 10203), (1253, 6213), (2071, 3759), (2289, 3401)]