21517888

素因数分解:

$2^6\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1117}}^1$

素因数の和:1179

約数の個数: 56

約数和(自身を含む): 49979072

約数和(自身を除く): 28461184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 172, 224, 301, 344, 448, 602, 688, 1117, 1204, 1376, 2234, 2408, 2752, 4468, 4816, 7819, 8936, 9632, 15638, 17872, 19264, 31276, 35744, 48031, 62552, 71488, 96062, 125104, 192124, 250208, 336217, 384248, 500416, 672434, 768496, 1344868, 1536992, 2689736, 3073984, 5379472, 10758944, 21517888]

約数ペア:

[(1, 21517888), (2, 10758944), (4, 5379472), (7, 3073984), (8, 2689736), (14, 1536992), (16, 1344868), (28, 768496), (32, 672434), (43, 500416), (56, 384248), (64, 336217), (86, 250208), (112, 192124), (172, 125104), (224, 96062), (301, 71488), (344, 62552), (448, 48031), (602, 35744), (688, 31276), (1117, 19264), (1204, 17872), (1376, 15638), (2234, 9632), (2408, 8936), (2752, 7819), (4468, 4816)]