21475641

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{38281}}^1$

素因数の和:38312

約数の個数: 16

約数和(自身を含む): 33075648

約数和(自身を除く): 11600007

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 38281, 114843, 421091, 650777, 1263273, 1952331, 7158547, 21475641]

約数ペア:

[(1, 21475641), (3, 7158547), (11, 1952331), (17, 1263273), (33, 650777), (51, 421091), (187, 114843), (561, 38281)]