21002878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{4463}}^1$

素因数の和:4659

約数の個数: 16

約数和(自身を含む): 34122816

約数和(自身を除く): 13119938

約数列:

[1, 2, 13, 26, 181, 362, 2353, 4463, 4706, 8926, 58019, 116038, 807803, 1615606, 10501439, 21002878]

約数ペア:

[(1, 21002878), (2, 10501439), (13, 1615606), (26, 807803), (181, 116038), (362, 58019), (2353, 8926), (4463, 4706)]