26649

素因数分解:

$3^4\times 7^1\times {\mathrm{47}}^1$

素因数の和:66

約数の個数: 20

約数和(自身を含む): 46464

約数和(自身を除く): 19815

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 81, 141, 189, 329, 423, 567, 987, 1269, 2961, 3807, 8883, 26649]

約数ペア:

[(1, 26649), (3, 8883), (7, 3807), (9, 2961), (21, 1269), (27, 987), (47, 567), (63, 423), (81, 329), (141, 189)]