21772688

素因数分解:

$2^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2663}}^1$

素因数の和:2751

約数の個数: 40

約数和(自身を含む): 48889728

約数和(自身を除く): 27117040

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 73, 112, 146, 292, 511, 584, 1022, 1168, 2044, 2663, 4088, 5326, 8176, 10652, 18641, 21304, 37282, 42608, 74564, 149128, 194399, 298256, 388798, 777596, 1360793, 1555192, 2721586, 3110384, 5443172, 10886344, 21772688]

約数ペア:

[(1, 21772688), (2, 10886344), (4, 5443172), (7, 3110384), (8, 2721586), (14, 1555192), (16, 1360793), (28, 777596), (56, 388798), (73, 298256), (112, 194399), (146, 149128), (292, 74564), (511, 42608), (584, 37282), (1022, 21304), (1168, 18641), (2044, 10652), (2663, 8176), (4088, 5326)]