21320026

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{9011}}^1$

素因数の和:9046

約数の個数: 24

約数和(自身を含む): 39580704

約数和(自身を除く): 18260678

約数列:

[1, 2, 7, 13, 14, 26, 91, 169, 182, 338, 1183, 2366, 9011, 18022, 63077, 117143, 126154, 234286, 820001, 1522859, 1640002, 3045718, 10660013, 21320026]

約数ペア:

[(1, 21320026), (2, 10660013), (7, 3045718), (13, 1640002), (14, 1522859), (26, 820001), (91, 234286), (169, 126154), (182, 117143), (338, 63077), (1183, 18022), (2366, 9011)]