19815090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{660503}}^1$

素因数の和:660513

約数の個数: 16

約数和(自身を含む): 47556288

約数和(自身を除く): 27741198

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 660503, 1321006, 1981509, 3302515, 3963018, 6605030, 9907545, 19815090]

約数ペア:

[(1, 19815090), (2, 9907545), (3, 6605030), (5, 3963018), (6, 3302515), (10, 1981509), (15, 1321006), (30, 660503)]