19964421

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{38917}}^1$

素因数の和:38945

約数の個数: 16

約数和(自身を含む): 31134400

約数和(自身を除く): 11169979

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 38917, 116751, 350253, 739423, 1050759, 2218269, 6654807, 19964421]

約数ペア:

[(1, 19964421), (3, 6654807), (9, 2218269), (19, 1050759), (27, 739423), (57, 350253), (171, 116751), (513, 38917)]