12640509

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1423}}^1$

素因数の和:1486

約数の個数: 32

約数和(自身を含む): 21872640

約数和(自身を除く): 9232131

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 141, 189, 329, 423, 987, 1269, 1423, 2961, 4269, 8883, 9961, 12807, 29883, 38421, 66881, 89649, 200643, 268947, 468167, 601929, 1404501, 1805787, 4213503, 12640509]

約数ペア:

[(1, 12640509), (3, 4213503), (7, 1805787), (9, 1404501), (21, 601929), (27, 468167), (47, 268947), (63, 200643), (141, 89649), (189, 66881), (329, 38421), (423, 29883), (987, 12807), (1269, 9961), (1423, 8883), (2961, 4269)]