19421721

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{65393}}^1$

素因数の和:65413

約数の個数: 16

約数和(自身を含む): 31389120

約数和(自身を除く): 11967399

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 65393, 196179, 588537, 719323, 1765611, 2157969, 6473907, 19421721]

約数ペア:

[(1, 19421721), (3, 6473907), (9, 2157969), (11, 1765611), (27, 719323), (33, 588537), (99, 196179), (297, 65393)]