21552784

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{881}}^1$

素因数の和:1039

約数の個数: 40

約数和(自身を含む): 45934560

約数和(自身を除く): 24381776

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 139, 176, 278, 556, 881, 1112, 1529, 1762, 2224, 3058, 3524, 6116, 7048, 9691, 12232, 14096, 19382, 24464, 38764, 77528, 122459, 155056, 244918, 489836, 979672, 1347049, 1959344, 2694098, 5388196, 10776392, 21552784]

約数ペア:

[(1, 21552784), (2, 10776392), (4, 5388196), (8, 2694098), (11, 1959344), (16, 1347049), (22, 979672), (44, 489836), (88, 244918), (139, 155056), (176, 122459), (278, 77528), (556, 38764), (881, 24464), (1112, 19382), (1529, 14096), (1762, 12232), (2224, 9691), (3058, 7048), (3524, 6116)]