21516398

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{4133}}^1$

素因数の和:4291

約数の個数: 16

約数和(自身を含む): 34229520

約数和(自身を除く): 12713122

約数列:

[1, 2, 19, 38, 137, 274, 2603, 4133, 5206, 8266, 78527, 157054, 566221, 1132442, 10758199, 21516398]

約数ペア:

[(1, 21516398), (2, 10758199), (19, 1132442), (38, 566221), (137, 157054), (274, 78527), (2603, 8266), (4133, 5206)]