21694321

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{353}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 24536448

約数和(自身を除く): 2842127

約数列:

[1, 11, 37, 151, 353, 407, 1661, 3883, 5587, 13061, 53303, 61457, 143671, 586333, 1972211, 21694321]

約数ペア:

[(1, 21694321), (11, 1972211), (37, 586333), (151, 143671), (353, 61457), (407, 53303), (1661, 13061), (3883, 5587)]