21000260001

素因数分解:

$3^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{3610153}}^1$

素因数の和:3610440

約数の個数: 16

約数和(自身を含む): 32115929984

約数和(自身を除く): 11115669983

約数列:

[1, 3, 7, 21, 277, 831, 1939, 5817, 3610153, 10830459, 25271071, 75813213, 1000012381, 3000037143, 7000086667, 21000260001]

約数ペア:

[(1, 21000260001), (3, 7000086667), (7, 3000037143), (21, 1000012381), (277, 75813213), (831, 25271071), (1939, 10830459), (5817, 3610153)]