71321649

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{4157}}^1$

素因数の和:4229

約数の個数: 32

約数和(自身を含む): 117089280

約数和(自身を除く): 45767631

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 301, 399, 817, 903, 2451, 4157, 5719, 12471, 17157, 29099, 78983, 87297, 178751, 236949, 536253, 552881, 1251257, 1658643, 3396269, 3753771, 10188807, 23773883, 71321649]

約数ペア:

[(1, 71321649), (3, 23773883), (7, 10188807), (19, 3753771), (21, 3396269), (43, 1658643), (57, 1251257), (129, 552881), (133, 536253), (301, 236949), (399, 178751), (817, 87297), (903, 78983), (2451, 29099), (4157, 17157), (5719, 12471)]