291295137

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{5573}}^1$

素因数の和:5733

約数の個数: 32

約数和(自身を含む): 470891520

約数和(自身を除く): 179596383

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 393, 399, 917, 2489, 2751, 5573, 7467, 16719, 17423, 39011, 52269, 105887, 117033, 317661, 730063, 741209, 2190189, 2223627, 5110441, 13871197, 15331323, 41613591, 97098379, 291295137]

約数ペア:

[(1, 291295137), (3, 97098379), (7, 41613591), (19, 15331323), (21, 13871197), (57, 5110441), (131, 2223627), (133, 2190189), (393, 741209), (399, 730063), (917, 317661), (2489, 117033), (2751, 105887), (5573, 52269), (7467, 39011), (16719, 17423)]