71312871

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{487}}^1$

素因数の和:883

約数の個数: 32

約数和(自身を含む): 114933760

約数和(自身を除く): 43620889

約数列:

[1, 3, 7, 19, 21, 57, 133, 367, 399, 487, 1101, 1461, 2569, 3409, 6973, 7707, 9253, 10227, 20919, 27759, 48811, 64771, 146433, 178729, 194313, 536187, 1251103, 3395851, 3753309, 10187553, 23770957, 71312871]

約数ペア:

[(1, 71312871), (3, 23770957), (7, 10187553), (19, 3753309), (21, 3395851), (57, 1251103), (133, 536187), (367, 194313), (399, 178729), (487, 146433), (1101, 64771), (1461, 48811), (2569, 27759), (3409, 20919), (6973, 10227), (7707, 9253)]