20819976

素因数分解:

$2^3\times 3^1\times {\mathrm{79}}^2\times {\mathrm{139}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 53096400

約数和(自身を除く): 32276424

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 79, 139, 158, 237, 278, 316, 417, 474, 556, 632, 834, 948, 1112, 1668, 1896, 3336, 6241, 10981, 12482, 18723, 21962, 24964, 32943, 37446, 43924, 49928, 65886, 74892, 87848, 131772, 149784, 263544, 867499, 1734998, 2602497, 3469996, 5204994, 6939992, 10409988, 20819976]

約数ペア:

[(1, 20819976), (2, 10409988), (3, 6939992), (4, 5204994), (6, 3469996), (8, 2602497), (12, 1734998), (24, 867499), (79, 263544), (139, 149784), (158, 131772), (237, 87848), (278, 74892), (316, 65886), (417, 49928), (474, 43924), (556, 37446), (632, 32943), (834, 24964), (948, 21962), (1112, 18723), (1668, 12482), (1896, 10981), (3336, 6241)]