13947409

素因数分解:

$7^4\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 20

約数和(自身を含む): 16817204

約数和(自身を除く): 2869795

約数列:

[1, 7, 37, 49, 157, 259, 343, 1099, 1813, 2401, 5809, 7693, 12691, 40663, 53851, 88837, 284641, 376957, 1992487, 13947409]

約数ペア:

[(1, 13947409), (7, 1992487), (37, 376957), (49, 284641), (157, 88837), (259, 53851), (343, 40663), (1099, 12691), (1813, 7693), (2401, 5809)]