81126171

素因数分解:

$3^3\times 7^1\times {\mathrm{347}}^1\times {\mathrm{1237}}^1$

素因数の和:1600

約数の個数: 32

約数和(自身を含む): 137863680

約数和(自身を除く): 56737509

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 347, 1041, 1237, 2429, 3123, 3711, 7287, 8659, 9369, 11133, 21861, 25977, 33399, 65583, 77931, 233793, 429239, 1287717, 3004673, 3863151, 9014019, 11589453, 27042057, 81126171]

約数ペア:

[(1, 81126171), (3, 27042057), (7, 11589453), (9, 9014019), (21, 3863151), (27, 3004673), (63, 1287717), (189, 429239), (347, 233793), (1041, 77931), (1237, 65583), (2429, 33399), (3123, 25977), (3711, 21861), (7287, 11133), (8659, 9369)]