18487986

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{280121}}^1$

素因数の和:280137

約数の個数: 16

約数和(自身を含む): 40337568

約数和(自身を除く): 21849582

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 280121, 560242, 840363, 1680726, 3081331, 6162662, 9243993, 18487986]

約数ペア:

[(1, 18487986), (2, 9243993), (3, 6162662), (6, 3081331), (11, 1680726), (22, 840363), (33, 560242), (66, 280121)]