19490896

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{11827}}^1$

素因数の和:11938

約数の個数: 20

約数和(自身を含む): 38133472

約数和(自身を除く): 18642576

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 11827, 23654, 47308, 94616, 189232, 1218181, 2436362, 4872724, 9745448, 19490896]

約数ペア:

[(1, 19490896), (2, 9745448), (4, 4872724), (8, 2436362), (16, 1218181), (103, 189232), (206, 94616), (412, 47308), (824, 23654), (1648, 11827)]