20988297

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19273}}^1$

素因数の和:19301

約数の個数: 18

約数和(自身を含む): 33324746

約数和(自身を除く): 12336449

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 19273, 57819, 173457, 212003, 636009, 1908027, 2332033, 6996099, 20988297]

約数ペア:

[(1, 20988297), (3, 6996099), (9, 2332033), (11, 1908027), (33, 636009), (99, 212003), (121, 173457), (363, 57819), (1089, 19273)]