21841215

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{132371}}^1$

素因数の和:132390

約数の個数: 16

約数和(自身を含む): 38123136

約数和(自身を除く): 16281921

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 132371, 397113, 661855, 1456081, 1985565, 4368243, 7280405, 21841215]

約数ペア:

[(1, 21841215), (3, 7280405), (5, 4368243), (11, 1985565), (15, 1456081), (33, 661855), (55, 397113), (165, 132371)]