217311471

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{577}}^1$

素因数の和:665

約数の個数: 64

約数和(自身を含む): 368995200

約数和(自身を除く): 151683729

約数列:

[1, 3, 9, 13, 27, 29, 37, 39, 87, 111, 117, 261, 333, 351, 377, 481, 577, 783, 999, 1073, 1131, 1443, 1731, 3219, 3393, 4329, 5193, 7501, 9657, 10179, 12987, 13949, 15579, 16733, 21349, 22503, 28971, 41847, 50199, 64047, 67509, 125541, 150597, 192141, 202527, 217529, 277537, 376623, 451791, 576423, 619121, 652587, 832611, 1857363, 1957761, 2497833, 5572089, 5873283, 7493499, 8048573, 16716267, 24145719, 72437157, 217311471]

約数ペア:

[(1, 217311471), (3, 72437157), (9, 24145719), (13, 16716267), (27, 8048573), (29, 7493499), (37, 5873283), (39, 5572089), (87, 2497833), (111, 1957761), (117, 1857363), (261, 832611), (333, 652587), (351, 619121), (377, 576423), (481, 451791), (577, 376623), (783, 277537), (999, 217529), (1073, 202527), (1131, 192141), (1443, 150597), (1731, 125541), (3219, 67509), (3393, 64047), (4329, 50199), (5193, 41847), (7501, 28971), (9657, 22503), (10179, 21349), (12987, 16733), (13949, 15579)]