81992169

素因数分解:

$3^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3527}}^1$

素因数の和:3587

約数の個数: 40

約数和(自身を含む): 143434368

約数和(自身を除く): 61442199

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 81, 123, 189, 287, 369, 567, 861, 1107, 2583, 3321, 3527, 7749, 10581, 23247, 24689, 31743, 74067, 95229, 144607, 222201, 285687, 433821, 666603, 1012249, 1301463, 1999809, 3036747, 3904389, 9110241, 11713167, 27330723, 81992169]

約数ペア:

[(1, 81992169), (3, 27330723), (7, 11713167), (9, 9110241), (21, 3904389), (27, 3036747), (41, 1999809), (63, 1301463), (81, 1012249), (123, 666603), (189, 433821), (287, 285687), (369, 222201), (567, 144607), (861, 95229), (1107, 74067), (2583, 31743), (3321, 24689), (3527, 23247), (7749, 10581)]