19753904

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{17389}}^1$

素因数の和:17468

約数の個数: 20

約数和(自身を含む): 38814480

約数和(自身を除く): 19060576

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 17389, 34778, 69556, 139112, 278224, 1234619, 2469238, 4938476, 9876952, 19753904]

約数ペア:

[(1, 19753904), (2, 9876952), (4, 4938476), (8, 2469238), (16, 1234619), (71, 278224), (142, 139112), (284, 69556), (568, 34778), (1136, 17389)]