21143903

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1$

素因数の和:599

約数の個数: 24

約数和(自身を含む): 25950960

約数和(自身を除く): 4807057

約数列:

[1, 11, 17, 19, 121, 187, 209, 323, 541, 2057, 2299, 3553, 5951, 9197, 10279, 39083, 65461, 101167, 113069, 174743, 1112837, 1243759, 1922173, 21143903]

約数ペア:

[(1, 21143903), (11, 1922173), (17, 1243759), (19, 1112837), (121, 174743), (187, 113069), (209, 101167), (323, 65461), (541, 39083), (2057, 10279), (2299, 9197), (3553, 5951)]