21354571

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{227}}^1$

素因数の和:474

約数の個数: 16

約数和(自身を含む): 24952320

約数和(自身を除く): 3597749

約数列:

[1, 7, 89, 151, 227, 623, 1057, 1589, 13439, 20203, 34277, 94073, 141421, 239939, 3050653, 21354571]

約数ペア:

[(1, 21354571), (7, 3050653), (89, 239939), (151, 141421), (227, 94073), (623, 34277), (1057, 20203), (1589, 13439)]