85857531

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 124540416

約数和(自身を除く): 38682885

約数列:

[1, 3, 17, 51, 71, 131, 181, 213, 393, 543, 1207, 2227, 3077, 3621, 6681, 9231, 9301, 12851, 23711, 27903, 38553, 71133, 158117, 218467, 403087, 474351, 655401, 1209261, 1683481, 5050443, 28619177, 85857531]

約数ペア:

[(1, 85857531), (3, 28619177), (17, 5050443), (51, 1683481), (71, 1209261), (131, 655401), (181, 474351), (213, 403087), (393, 218467), (543, 158117), (1207, 71133), (2227, 38553), (3077, 27903), (3621, 23711), (6681, 12851), (9231, 9301)]