21404012

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24659}}^1$

素因数の和:24701

約数の個数: 24

約数和(自身を含む): 44190720

約数和(自身を除く): 22786708

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24659, 49318, 98636, 172613, 345226, 690452, 764429, 1528858, 3057716, 5351003, 10702006, 21404012]

約数ペア:

[(1, 21404012), (2, 10702006), (4, 5351003), (7, 3057716), (14, 1528858), (28, 764429), (31, 690452), (62, 345226), (124, 172613), (217, 98636), (434, 49318), (868, 24659)]