21038491

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1553}}^1$

素因数の和:1626

約数の個数: 16

約数和(自身を含む): 23869440

約数和(自身を除く): 2830949

約数列:

[1, 19, 23, 31, 437, 589, 713, 1553, 13547, 29507, 35719, 48143, 678661, 914717, 1107289, 21038491]

約数ペア:

[(1, 21038491), (19, 1107289), (23, 914717), (31, 678661), (437, 48143), (589, 35719), (713, 29507), (1553, 13547)]