81578763

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41771}}^1$

素因数の和:41815

約数の個数: 24

約数和(自身を含む): 139017216

約数和(自身を除く): 57438453

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 41771, 125313, 292397, 375939, 877191, 1294901, 2631573, 3884703, 9064307, 11654109, 27192921, 81578763]

約数ペア:

[(1, 81578763), (3, 27192921), (7, 11654109), (9, 9064307), (21, 3884703), (31, 2631573), (63, 1294901), (93, 877191), (217, 375939), (279, 292397), (651, 125313), (1953, 41771)]