21386944509

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{15200387}}^1$

素因数の和:15200464

約数の個数: 16

約数和(自身を含む): 33076044288

約数和(自身を除く): 11689099779

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 15200387, 45601161, 106402709, 319208127, 1018425929, 3055277787, 7128981503, 21386944509]

約数ペア:

[(1, 21386944509), (3, 7128981503), (7, 3055277787), (21, 1018425929), (67, 319208127), (201, 106402709), (469, 45601161), (1407, 15200387)]