28211001

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{7949}}^1$

素因数の和:7985

約数の個数: 24

約数和(自身を含む): 46555200

約数和(自身を除く): 18344199

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 7949, 23847, 55643, 103337, 166929, 310011, 723359, 1343381, 2170077, 4030143, 9403667, 28211001]

約数ペア:

[(1, 28211001), (3, 9403667), (7, 4030143), (13, 2170077), (21, 1343381), (39, 723359), (91, 310011), (169, 166929), (273, 103337), (507, 55643), (1183, 23847), (3549, 7949)]