21584213

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{317}}^1$

素因数の和:532

約数の個数: 16

約数和(自身を含む): 25277184

約数和(自身を除く): 3692971

約数列:

[1, 7, 71, 137, 317, 497, 959, 2219, 9727, 22507, 43429, 68089, 157549, 304003, 3083459, 21584213]

約数ペア:

[(1, 21584213), (7, 3083459), (71, 304003), (137, 157549), (317, 68089), (497, 43429), (959, 22507), (2219, 9727)]