21156468

素因数分解:

$2^2\times 3^1\times {\mathrm{107}}^1\times {\mathrm{16477}}^1$

素因数の和:16591

約数の個数: 24

約数和(自身を含む): 49829472

約数和(自身を除く): 28673004

約数列:

[1, 2, 3, 4, 6, 12, 107, 214, 321, 428, 642, 1284, 16477, 32954, 49431, 65908, 98862, 197724, 1763039, 3526078, 5289117, 7052156, 10578234, 21156468]

約数ペア:

[(1, 21156468), (2, 10578234), (3, 7052156), (4, 5289117), (6, 3526078), (12, 1763039), (107, 197724), (214, 98862), (321, 65908), (428, 49431), (642, 32954), (1284, 16477)]