21095841

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17449}}^1$

素因数の和:17496

約数の個数: 16

約数和(自身を含む): 31270400

約数和(自身を除く): 10174559

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 17449, 52347, 226837, 540919, 680511, 1622757, 7031947, 21095841]

約数ペア:

[(1, 21095841), (3, 7031947), (13, 1622757), (31, 680511), (39, 540919), (93, 226837), (403, 52347), (1209, 17449)]