19973936

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{54277}}^1$

素因数の和:54308

約数の個数: 20

約数和(自身を含む): 40382832

約数和(自身を除く): 20408896

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 54277, 108554, 217108, 434216, 868432, 1248371, 2496742, 4993484, 9986968, 19973936]

約数ペア:

[(1, 19973936), (2, 9986968), (4, 4993484), (8, 2496742), (16, 1248371), (23, 868432), (46, 434216), (92, 217108), (184, 108554), (368, 54277)]