2387721

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:493

約数の個数: 24

約数和(自身を含む): 3812160

約数和(自身を除く): 1424439

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 439, 777, 1317, 1813, 3073, 5439, 9219, 16243, 21511, 48729, 64533, 113701, 341103, 795907, 2387721]

約数ペア:

[(1, 2387721), (3, 795907), (7, 341103), (21, 113701), (37, 64533), (49, 48729), (111, 21511), (147, 16243), (259, 9219), (439, 5439), (777, 3073), (1317, 1813)]