21992656

素因数分解:

$2^4\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1097}}^1$

素因数の和:1291

約数の個数: 40

約数和(自身を含む): 49014720

約数和(自身を除く): 27022064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 179, 358, 716, 1097, 1253, 1432, 2194, 2506, 2864, 4388, 5012, 7679, 8776, 10024, 15358, 17552, 20048, 30716, 61432, 122864, 196363, 392726, 785452, 1374541, 1570904, 2749082, 3141808, 5498164, 10996328, 21992656]

約数ペア:

[(1, 21992656), (2, 10996328), (4, 5498164), (7, 3141808), (8, 2749082), (14, 1570904), (16, 1374541), (28, 785452), (56, 392726), (112, 196363), (179, 122864), (358, 61432), (716, 30716), (1097, 20048), (1253, 17552), (1432, 15358), (2194, 10024), (2506, 8776), (2864, 7679), (4388, 5012)]