215651919

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31793}}^1$

素因数の和:31839

約数の個数: 32

約数和(自身を含む): 366266880

約数和(自身を除く): 150614961

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 6783, 31793, 95379, 222551, 540481, 604067, 667653, 1621443, 1812201, 3783367, 4228469, 10269139, 11350101, 12685407, 30807417, 71883973, 215651919]

約数ペア:

[(1, 215651919), (3, 71883973), (7, 30807417), (17, 12685407), (19, 11350101), (21, 10269139), (51, 4228469), (57, 3783367), (119, 1812201), (133, 1621443), (323, 667653), (357, 604067), (399, 540481), (969, 222551), (2261, 95379), (6783, 31793)]