21013071

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{13291}}^1$

素因数の和:13342

約数の個数: 16

約数和(自身を含む): 30624768

約数和(自身を除く): 9611697

約数列:

[1, 3, 17, 31, 51, 93, 527, 1581, 13291, 39873, 225947, 412021, 677841, 1236063, 7004357, 21013071]

約数ペア:

[(1, 21013071), (3, 7004357), (17, 1236063), (31, 677841), (51, 412021), (93, 225947), (527, 39873), (1581, 13291)]