81852687

素因数分解:

$3^4\times 7^2\times {\mathrm{41}}^1\times {\mathrm{503}}^1$

素因数の和:570

約数の個数: 60

約数和(自身を含む): 145995696

約数和(自身を除く): 64143009

約数列:

[1, 3, 7, 9, 21, 27, 41, 49, 63, 81, 123, 147, 189, 287, 369, 441, 503, 567, 861, 1107, 1323, 1509, 2009, 2583, 3321, 3521, 3969, 4527, 6027, 7749, 10563, 13581, 18081, 20623, 23247, 24647, 31689, 40743, 54243, 61869, 73941, 95067, 144361, 162729, 185607, 221823, 285201, 433083, 556821, 665469, 1010527, 1299249, 1670463, 1996407, 3031581, 3897747, 9094743, 11693241, 27284229, 81852687]

約数ペア:

[(1, 81852687), (3, 27284229), (7, 11693241), (9, 9094743), (21, 3897747), (27, 3031581), (41, 1996407), (49, 1670463), (63, 1299249), (81, 1010527), (123, 665469), (147, 556821), (189, 433083), (287, 285201), (369, 221823), (441, 185607), (503, 162729), (567, 144361), (861, 95067), (1107, 73941), (1323, 61869), (1509, 54243), (2009, 40743), (2583, 31689), (3321, 24647), (3521, 23247), (3969, 20623), (4527, 18081), (6027, 13581), (7749, 10563)]