19967499

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{38923}}^1$

素因数の和:38951

約数の個数: 16

約数和(自身を含む): 31139200

約数和(自身を除く): 11171701

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 38923, 116769, 350307, 739537, 1050921, 2218611, 6655833, 19967499]

約数ペア:

[(1, 19967499), (3, 6655833), (9, 2218611), (19, 1050921), (27, 739537), (57, 350307), (171, 116769), (513, 38923)]