21000810886

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{72719}}^1\times {\mathrm{13127}}^1$

素因数の和:85859

約数の個数: 16

約数和(自身を含む): 34368053760

約数和(自身を除く): 13367242874

約数列:

[1, 2, 11, 22, 13127, 26254, 72719, 144397, 145438, 288794, 799909, 1599818, 954582313, 1909164626, 10500405443, 21000810886]

約数ペア:

[(1, 21000810886), (2, 10500405443), (11, 1909164626), (22, 954582313), (13127, 1599818), (26254, 799909), (72719, 288794), (144397, 145438)]