12940557

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1873}}^1$

素因数の和:1937

約数の個数: 24

約数和(自身を含む): 20509056

約数和(自身を除く): 7568499

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 1873, 2303, 5619, 6909, 13111, 39333, 88031, 91777, 264093, 275331, 616217, 1848651, 4313519, 12940557]

約数ペア:

[(1, 12940557), (3, 4313519), (7, 1848651), (21, 616217), (47, 275331), (49, 264093), (141, 91777), (147, 88031), (329, 39333), (987, 13111), (1873, 6909), (2303, 5619)]