21558628

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8461}}^1$

素因数の和:8492

約数の個数: 36

約数和(自身を含む): 47268732

約数和(自身を除く): 25710104

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 8461, 16922, 33844, 59227, 109993, 118454, 219986, 236908, 414589, 439972, 769951, 829178, 1539902, 1658356, 3079804, 5389657, 10779314, 21558628]

約数ペア:

[(1, 21558628), (2, 10779314), (4, 5389657), (7, 3079804), (13, 1658356), (14, 1539902), (26, 829178), (28, 769951), (49, 439972), (52, 414589), (91, 236908), (98, 219986), (182, 118454), (196, 109993), (364, 59227), (637, 33844), (1274, 16922), (2548, 8461)]