218045919

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:500

約数の個数: 64

約数和(自身を含む): 380764160

約数和(自身を除く): 162718241

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 127, 133, 247, 273, 331, 381, 399, 741, 889, 993, 1651, 1729, 2317, 2413, 2667, 4303, 4953, 5187, 6289, 6951, 7239, 11557, 12909, 16891, 18867, 30121, 31369, 34671, 42037, 44023, 50673, 81757, 90363, 94107, 126111, 132069, 219583, 245271, 294259, 546481, 572299, 658749, 798703, 882777, 1639443, 1716897, 2396109, 3825367, 5590921, 10383139, 11476101, 16772763, 31149417, 72681973, 218045919]

約数ペア:

[(1, 218045919), (3, 72681973), (7, 31149417), (13, 16772763), (19, 11476101), (21, 10383139), (39, 5590921), (57, 3825367), (91, 2396109), (127, 1716897), (133, 1639443), (247, 882777), (273, 798703), (331, 658749), (381, 572299), (399, 546481), (741, 294259), (889, 245271), (993, 219583), (1651, 132069), (1729, 126111), (2317, 94107), (2413, 90363), (2667, 81757), (4303, 50673), (4953, 44023), (5187, 42037), (6289, 34671), (6951, 31369), (7239, 30121), (11557, 18867), (12909, 16891)]