21064564

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{4363}}^1$

素因数の和:4455

約数の個数: 24

約数和(自身を含む): 39590208

約数和(自身を除く): 18525644

約数列:

[1, 2, 4, 17, 34, 68, 71, 142, 284, 1207, 2414, 4363, 4828, 8726, 17452, 74171, 148342, 296684, 309773, 619546, 1239092, 5266141, 10532282, 21064564]

約数ペア:

[(1, 21064564), (2, 10532282), (4, 5266141), (17, 1239092), (34, 619546), (68, 309773), (71, 296684), (142, 148342), (284, 74171), (1207, 17452), (2414, 8726), (4363, 4828)]