21341997

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{911}}^1$

素因数の和:1073

約数の個数: 24

約数和(自身を含む): 32722560

約数和(自身を除く): 11380563

約数列:

[1, 3, 9, 19, 57, 137, 171, 411, 911, 1233, 2603, 2733, 7809, 8199, 17309, 23427, 51927, 124807, 155781, 374421, 1123263, 2371333, 7113999, 21341997]

約数ペア:

[(1, 21341997), (3, 7113999), (9, 2371333), (19, 1123263), (57, 374421), (137, 155781), (171, 124807), (411, 51927), (911, 23427), (1233, 17309), (2603, 8199), (2733, 7809)]