78559551

素因数分解:

$3^4\times 7^1\times {\mathrm{349}}^1\times {\mathrm{397}}^1$

素因数の和:765

約数の個数: 40

約数和(自身を含む): 134842400

約数和(自身を除く): 56282849

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 349, 397, 567, 1047, 1191, 2443, 2779, 3141, 3573, 7329, 8337, 9423, 10719, 21987, 25011, 28269, 32157, 65961, 75033, 138553, 197883, 225099, 415659, 969871, 1246977, 2909613, 3740931, 8728839, 11222793, 26186517, 78559551]

約数ペア:

[(1, 78559551), (3, 26186517), (7, 11222793), (9, 8728839), (21, 3740931), (27, 2909613), (63, 1246977), (81, 969871), (189, 415659), (349, 225099), (397, 197883), (567, 138553), (1047, 75033), (1191, 65961), (2443, 32157), (2779, 28269), (3141, 25011), (3573, 21987), (7329, 10719), (8337, 9423)]