201405405

素因数分解:

$3^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{20947}}^1$

素因数の和:21596

約数の個数: 16

約数和(自身を含む): 322766784

約数和(自身を除く): 121361379

約数列:

[1, 3, 5, 15, 641, 1923, 3205, 9615, 20947, 62841, 104735, 314205, 13427027, 40281081, 67135135, 201405405]

約数ペア:

[(1, 201405405), (3, 67135135), (5, 40281081), (15, 13427027), (641, 314205), (1923, 104735), (3205, 62841), (9615, 20947)]