21198604

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39847}}^1$

素因数の和:39877

約数の個数: 24

約数和(自身を含む): 44629760

約数和(自身を除く): 23431156

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39847, 79694, 159388, 278929, 557858, 757093, 1115716, 1514186, 3028372, 5299651, 10599302, 21198604]

約数ペア:

[(1, 21198604), (2, 10599302), (4, 5299651), (7, 3028372), (14, 1514186), (19, 1115716), (28, 757093), (38, 557858), (76, 278929), (133, 159388), (266, 79694), (532, 39847)]