16909540

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{4007}}^1$

素因数の和:4227

約数の個数: 24

約数和(自身を含む): 35687232

約数和(自身を除く): 18777692

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4007, 4220, 8014, 16028, 20035, 40070, 80140, 845477, 1690954, 3381908, 4227385, 8454770, 16909540]

約数ペア:

[(1, 16909540), (2, 8454770), (4, 4227385), (5, 3381908), (10, 1690954), (20, 845477), (211, 80140), (422, 40070), (844, 20035), (1055, 16028), (2110, 8014), (4007, 4220)]