21129135

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{45439}}^1$

素因数の和:45478

約数の個数: 16

約数和(自身を含む): 34897920

約数和(自身を除く): 13768785

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 45439, 136317, 227195, 681585, 1408609, 4225827, 7043045, 21129135]

約数ペア:

[(1, 21129135), (3, 7043045), (5, 4225827), (15, 1408609), (31, 681585), (93, 227195), (155, 136317), (465, 45439)]