19655883

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{12923}}^1$

素因数の和:12955

約数の個数: 18

約数和(自身を含む): 30746196

約数和(自身を除く): 11090313

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 12923, 38769, 116307, 167999, 503997, 1511991, 2183987, 6551961, 19655883]

約数ペア:

[(1, 19655883), (3, 6551961), (9, 2183987), (13, 1511991), (39, 503997), (117, 167999), (169, 116307), (507, 38769), (1521, 12923)]