20974996

素因数分解:

$2^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{7001}}^1$

素因数の和:7119

約数の個数: 24

約数和(自身を含む): 42348096

約数和(自身を除く): 21373100

約数列:

[1, 2, 4, 7, 14, 28, 107, 214, 428, 749, 1498, 2996, 7001, 14002, 28004, 49007, 98014, 196028, 749107, 1498214, 2996428, 5243749, 10487498, 20974996]

約数ペア:

[(1, 20974996), (2, 10487498), (4, 5243749), (7, 2996428), (14, 1498214), (28, 749107), (107, 196028), (214, 98014), (428, 49007), (749, 28004), (1498, 14002), (2996, 7001)]