21284874

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{6997}}^1$

素因数の和:7031

約数の個数: 36

約数和(自身を含む): 49944726

約数和(自身を除く): 28659852

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 169, 234, 338, 507, 1014, 1521, 3042, 6997, 13994, 20991, 41982, 62973, 90961, 125946, 181922, 272883, 545766, 818649, 1182493, 1637298, 2364986, 3547479, 7094958, 10642437, 21284874]

約数ペア:

[(1, 21284874), (2, 10642437), (3, 7094958), (6, 3547479), (9, 2364986), (13, 1637298), (18, 1182493), (26, 818649), (39, 545766), (78, 272883), (117, 181922), (169, 125946), (234, 90961), (338, 62973), (507, 41982), (1014, 20991), (1521, 13994), (3042, 6997)]