20851454

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{9011}}^1$

素因数の和:9115

約数の個数: 16

約数和(自身を含む): 34065360

約数和(自身を除く): 13213906

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 9011, 18022, 117143, 234286, 801979, 1603958, 10425727, 20851454]

約数ペア:

[(1, 20851454), (2, 10425727), (13, 1603958), (26, 801979), (89, 234286), (178, 117143), (1157, 18022), (2314, 9011)]