21176859

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{27901}}^1$

素因数の和:27938

約数の個数: 16

約数和(自身を含む): 32143104

約数和(自身を除く): 10966245

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 27901, 83703, 306911, 641723, 920733, 1925169, 7058953, 21176859]

約数ペア:

[(1, 21176859), (3, 7058953), (11, 1925169), (23, 920733), (33, 641723), (69, 306911), (253, 83703), (759, 27901)]