21055878

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:429

約数の個数: 48

約数和(自身を含む): 47357856

約数和(自身を除く): 26301978

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 103, 123, 206, 246, 277, 309, 369, 554, 618, 738, 831, 927, 1662, 1854, 2493, 4223, 4986, 8446, 11357, 12669, 22714, 25338, 28531, 34071, 38007, 57062, 68142, 76014, 85593, 102213, 171186, 204426, 256779, 513558, 1169771, 2339542, 3509313, 7018626, 10527939, 21055878]

約数ペア:

[(1, 21055878), (2, 10527939), (3, 7018626), (6, 3509313), (9, 2339542), (18, 1169771), (41, 513558), (82, 256779), (103, 204426), (123, 171186), (206, 102213), (246, 85593), (277, 76014), (309, 68142), (369, 57062), (554, 38007), (618, 34071), (738, 28531), (831, 25338), (927, 22714), (1662, 12669), (1854, 11357), (2493, 8446), (4223, 4986)]