20049009

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{1667}}^1$

素因数の和:1900

約数の個数: 16

約数和(自身を含む): 28289280

約数和(自身を除く): 8240271

約数列:

[1, 3, 19, 57, 211, 633, 1667, 4009, 5001, 12027, 31673, 95019, 351737, 1055211, 6683003, 20049009]

約数ペア:

[(1, 20049009), (3, 6683003), (19, 1055211), (57, 351737), (211, 95019), (633, 31673), (1667, 12027), (4009, 5001)]