21300265

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{14153}}^1$

素因数の和:14208

約数の個数: 16

約数和(自身を含む): 29893248

約数和(自身を除く): 8592983

約数列:

[1, 5, 7, 35, 43, 215, 301, 1505, 14153, 70765, 99071, 495355, 608579, 3042895, 4260053, 21300265]

約数ペア:

[(1, 21300265), (5, 4260053), (7, 3042895), (35, 608579), (43, 495355), (215, 99071), (301, 70765), (1505, 14153)]