18977938

素因数分解:

$2^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{7573}}^1$

素因数の和:7761

約数の個数: 16

約数和(自身を含む): 32719680

約数和(自身を除く): 13741742

約数列:

[1, 2, 7, 14, 179, 358, 1253, 2506, 7573, 15146, 53011, 106022, 1355567, 2711134, 9488969, 18977938]

約数ペア:

[(1, 18977938), (2, 9488969), (7, 2711134), (14, 1355567), (179, 106022), (358, 53011), (1253, 15146), (2506, 7573)]