12639249

素因数分解:

$3^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{457}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 20958080

約数和(自身を除く): 8318831

約数列:

[1, 3, 7, 9, 21, 63, 439, 457, 1317, 1371, 3073, 3199, 3951, 4113, 9219, 9597, 27657, 28791, 200623, 601869, 1404361, 1805607, 4213083, 12639249]

約数ペア:

[(1, 12639249), (3, 4213083), (7, 1805607), (9, 1404361), (21, 601869), (63, 200623), (439, 28791), (457, 27657), (1317, 9597), (1371, 9219), (3073, 4113), (3199, 3951)]