84421690

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{20641}}^1$

素因数の和:21057

約数の個数: 16

約数和(自身を含む): 152337960

約数和(自身を除く): 67916270

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 20641, 41282, 103205, 206410, 8442169, 16884338, 42210845, 84421690]

約数ペア:

[(1, 84421690), (2, 42210845), (5, 16884338), (10, 8442169), (409, 206410), (818, 103205), (2045, 41282), (4090, 20641)]