25662987

素因数分解:

$3^6\times 7^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:179

約数の個数: 56

約数和(自身を含む): 45328896

約数和(自身を除く): 19665909

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 81, 107, 141, 189, 243, 321, 329, 423, 567, 729, 749, 963, 987, 1269, 1701, 2247, 2889, 2961, 3807, 5029, 5103, 6741, 8667, 8883, 11421, 15087, 20223, 26001, 26649, 34263, 35203, 45261, 60669, 78003, 79947, 105609, 135783, 182007, 239841, 316827, 407349, 546021, 950481, 1222047, 2851443, 3666141, 8554329, 25662987]

約数ペア:

[(1, 25662987), (3, 8554329), (7, 3666141), (9, 2851443), (21, 1222047), (27, 950481), (47, 546021), (63, 407349), (81, 316827), (107, 239841), (141, 182007), (189, 135783), (243, 105609), (321, 79947), (329, 78003), (423, 60669), (567, 45261), (729, 35203), (749, 34263), (963, 26649), (987, 26001), (1269, 20223), (1701, 15087), (2247, 11421), (2889, 8883), (2961, 8667), (3807, 6741), (5029, 5103)]