21053006

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1\times {\mathrm{313}}^1$

素因数の和:540

約数の個数: 24

約数和(自身を含む): 34477200

約数和(自身を除く): 13424194

約数列:

[1, 2, 13, 26, 169, 199, 313, 338, 398, 626, 2587, 4069, 5174, 8138, 33631, 52897, 62287, 67262, 105794, 124574, 809731, 1619462, 10526503, 21053006]

約数ペア:

[(1, 21053006), (2, 10526503), (13, 1619462), (26, 809731), (169, 124574), (199, 105794), (313, 67262), (338, 62287), (398, 52897), (626, 33631), (2587, 8138), (4069, 5174)]