215825115

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{76943}}^1$

素因数の和:76979

約数の個数: 32

約数和(自身を含む): 398877696

約数和(自身を除く): 183052581

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 76943, 230829, 384715, 846373, 1154145, 1308031, 2539119, 3924093, 4231865, 6540155, 12695595, 14388341, 19620465, 43165023, 71941705, 215825115]

約数ペア:

[(1, 215825115), (3, 71941705), (5, 43165023), (11, 19620465), (15, 14388341), (17, 12695595), (33, 6540155), (51, 4231865), (55, 3924093), (85, 2539119), (165, 1308031), (187, 1154145), (255, 846373), (561, 384715), (935, 230829), (2805, 76943)]