291219885

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{20287}}^1$

素因数の和:20338

約数の個数: 48

約数和(自身を含む): 569687040

約数和(自身を除く): 278467155

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 55, 87, 99, 145, 165, 261, 319, 435, 495, 957, 1305, 1595, 2871, 4785, 14355, 20287, 60861, 101435, 182583, 223157, 304305, 588323, 669471, 912915, 1115785, 1764969, 2008413, 2941615, 3347355, 5294907, 6471553, 8824845, 10042065, 19414659, 26474535, 32357765, 58243977, 97073295, 291219885]

約数ペア:

[(1, 291219885), (3, 97073295), (5, 58243977), (9, 32357765), (11, 26474535), (15, 19414659), (29, 10042065), (33, 8824845), (45, 6471553), (55, 5294907), (87, 3347355), (99, 2941615), (145, 2008413), (165, 1764969), (261, 1115785), (319, 912915), (435, 669471), (495, 588323), (957, 304305), (1305, 223157), (1595, 182583), (2871, 101435), (4785, 60861), (14355, 20287)]