81169893

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 138977280

約数和(自身を除く): 57807387

約数列:

[1, 3, 7, 9, 21, 47, 63, 79, 141, 237, 329, 347, 423, 553, 711, 987, 1041, 1659, 2429, 2961, 3123, 3713, 4977, 7287, 11139, 16309, 21861, 25991, 27413, 33417, 48927, 77973, 82239, 114163, 146781, 191891, 233919, 246717, 342489, 575673, 1027467, 1288411, 1727019, 3865233, 9018877, 11595699, 27056631, 81169893]

約数ペア:

[(1, 81169893), (3, 27056631), (7, 11595699), (9, 9018877), (21, 3865233), (47, 1727019), (63, 1288411), (79, 1027467), (141, 575673), (237, 342489), (329, 246717), (347, 233919), (423, 191891), (553, 146781), (711, 114163), (987, 82239), (1041, 77973), (1659, 48927), (2429, 33417), (2961, 27413), (3123, 25991), (3713, 21861), (4977, 16309), (7287, 11139)]