21780810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{242009}}^1$

素因数の和:242022

約数の個数: 24

約数和(自身を含む): 56630340

約数和(自身を除く): 34849530

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 242009, 484018, 726027, 1210045, 1452054, 2178081, 2420090, 3630135, 4356162, 7260270, 10890405, 21780810]

約数ペア:

[(1, 21780810), (2, 10890405), (3, 7260270), (5, 4356162), (6, 3630135), (9, 2420090), (10, 2178081), (15, 1452054), (18, 1210045), (30, 726027), (45, 484018), (90, 242009)]