21209968460

素因数分解:

$2^2\times 5^1\times {\mathrm{1319}}^1\times {\mathrm{804017}}^1$

素因数の和:805345

約数の個数: 24

約数和(自身を含む): 44574757920

約数和(自身を除く): 23364789460

約数列:

[1, 2, 4, 5, 10, 20, 1319, 2638, 5276, 6595, 13190, 26380, 804017, 1608034, 3216068, 4020085, 8040170, 16080340, 1060498423, 2120996846, 4241993692, 5302492115, 10604984230, 21209968460]

約数ペア:

[(1, 21209968460), (2, 10604984230), (4, 5302492115), (5, 4241993692), (10, 2120996846), (20, 1060498423), (1319, 16080340), (2638, 8040170), (5276, 4020085), (6595, 3216068), (13190, 1608034), (26380, 804017)]