21359289

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13933}}^1$

素因数の和:14016

約数の個数: 16

約数和(自身を含む): 32995712

約数和(自身を除く): 11636423

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 13933, 41799, 97531, 292593, 1017109, 3051327, 7119763, 21359289]

約数ペア:

[(1, 21359289), (3, 7119763), (7, 3051327), (21, 1017109), (73, 292593), (219, 97531), (511, 41799), (1533, 13933)]