20151855

素因数分解:

$3^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1321}}^1$

素因数の和:1448

約数の個数: 32

約数和(自身を含む): 36169920

約数和(自身を除く): 16018065

約数列:

[1, 3, 5, 9, 15, 27, 45, 113, 135, 339, 565, 1017, 1321, 1695, 3051, 3963, 5085, 6605, 11889, 15255, 19815, 35667, 59445, 149273, 178335, 447819, 746365, 1343457, 2239095, 4030371, 6717285, 20151855]

約数ペア:

[(1, 20151855), (3, 6717285), (5, 4030371), (9, 2239095), (15, 1343457), (27, 746365), (45, 447819), (113, 178335), (135, 149273), (339, 59445), (565, 35667), (1017, 19815), (1321, 15255), (1695, 11889), (3051, 6605), (3963, 5085)]