20899879

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20879}}^1$

素因数の和:20910

約数の個数: 16

約数和(自身を含む): 28062720

約数和(自身を除く): 7162841

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 20879, 146153, 229669, 271427, 1607683, 1899989, 2985697, 20899879]

約数ペア:

[(1, 20899879), (7, 2985697), (11, 1899989), (13, 1607683), (77, 271427), (91, 229669), (143, 146153), (1001, 20879)]