21735819

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11897}}^1$

素因数の和:11939

約数の個数: 24

約数和(自身を含む): 37121760

約数和(自身を除く): 15385941

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 11897, 35691, 83279, 107073, 249837, 345013, 749511, 1035039, 2415091, 3105117, 7245273, 21735819]

約数ペア:

[(1, 21735819), (3, 7245273), (7, 3105117), (9, 2415091), (21, 1035039), (29, 749511), (63, 345013), (87, 249837), (203, 107073), (261, 83279), (609, 35691), (1827, 11897)]