21486946

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:486

約数の個数: 32

約数和(自身を含む): 37095408

約数和(自身を除く): 15608462

約数列:

[1, 2, 13, 17, 26, 34, 173, 221, 281, 346, 442, 562, 2249, 2941, 3653, 4498, 4777, 5882, 7306, 9554, 38233, 48613, 62101, 76466, 97226, 124202, 631969, 826421, 1263938, 1652842, 10743473, 21486946]

約数ペア:

[(1, 21486946), (2, 10743473), (13, 1652842), (17, 1263938), (26, 826421), (34, 631969), (173, 124202), (221, 97226), (281, 76466), (346, 62101), (442, 48613), (562, 38233), (2249, 9554), (2941, 7306), (3653, 5882), (4498, 4777)]