21027212

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{673}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 37706256

約数和(自身を除く): 16679044

約数列:

[1, 2, 4, 73, 107, 146, 214, 292, 428, 673, 1346, 2692, 7811, 15622, 31244, 49129, 72011, 98258, 144022, 196516, 288044, 5256803, 10513606, 21027212]

約数ペア:

[(1, 21027212), (2, 10513606), (4, 5256803), (73, 288044), (107, 196516), (146, 144022), (214, 98258), (292, 72011), (428, 49129), (673, 31244), (1346, 15622), (2692, 7811)]