16720869

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{631}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 24880576

約数和(自身を除く): 8159707

約数列:

[1, 3, 11, 33, 73, 121, 219, 363, 631, 803, 1893, 2409, 6941, 8833, 20823, 26499, 46063, 76351, 138189, 229053, 506693, 1520079, 5573623, 16720869]

約数ペア:

[(1, 16720869), (3, 5573623), (11, 1520079), (33, 506693), (73, 229053), (121, 138189), (219, 76351), (363, 46063), (631, 26499), (803, 20823), (1893, 8833), (2409, 6941)]