81256203

素因数分解:

$3^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1031}}^1$

素因数の和:1189

約数の個数: 40

約数和(自身を含む): 139856640

約数和(自身を除く): 58600437

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 139, 189, 417, 567, 973, 1031, 1251, 2919, 3093, 3753, 7217, 8757, 9279, 11259, 21651, 26271, 27837, 64953, 78813, 83511, 143309, 194859, 429927, 584577, 1003163, 1289781, 3009489, 3869343, 9028467, 11608029, 27085401, 81256203]

約数ペア:

[(1, 81256203), (3, 27085401), (7, 11608029), (9, 9028467), (21, 3869343), (27, 3009489), (63, 1289781), (81, 1003163), (139, 584577), (189, 429927), (417, 194859), (567, 143309), (973, 83511), (1031, 78813), (1251, 64953), (2919, 27837), (3093, 26271), (3753, 21651), (7217, 11259), (8757, 9279)]