18908841

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1$

素因数の和:609

約数の個数: 32

約数和(自身を含む): 30355200

約数和(自身を除く): 11446359

約数列:

[1, 3, 7, 21, 29, 61, 87, 183, 203, 427, 509, 609, 1281, 1527, 1769, 3563, 5307, 10689, 12383, 14761, 31049, 37149, 44283, 93147, 103327, 217343, 309981, 652029, 900421, 2701263, 6302947, 18908841]

約数ペア:

[(1, 18908841), (3, 6302947), (7, 2701263), (21, 900421), (29, 652029), (61, 309981), (87, 217343), (183, 103327), (203, 93147), (427, 44283), (509, 37149), (609, 31049), (1281, 14761), (1527, 12383), (1769, 10689), (3563, 5307)]