21031538

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{12101}}^1$

素因数の和:12193

約数の個数: 16

約数和(自身を含む): 34853760

約数和(自身を除く): 13822222

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 12101, 24202, 133111, 266222, 955979, 1911958, 10515769, 21031538]

約数ペア:

[(1, 21031538), (2, 10515769), (11, 1911958), (22, 955979), (79, 266222), (158, 133111), (869, 24202), (1738, 12101)]