21845784

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{149}}^2$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 56324520

約数和(自身を除く): 34478736

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 149, 164, 246, 298, 328, 447, 492, 596, 894, 984, 1192, 1788, 3576, 6109, 12218, 18327, 22201, 24436, 36654, 44402, 48872, 66603, 73308, 88804, 133206, 146616, 177608, 266412, 532824, 910241, 1820482, 2730723, 3640964, 5461446, 7281928, 10922892, 21845784]

約数ペア:

[(1, 21845784), (2, 10922892), (3, 7281928), (4, 5461446), (6, 3640964), (8, 2730723), (12, 1820482), (24, 910241), (41, 532824), (82, 266412), (123, 177608), (149, 146616), (164, 133206), (246, 88804), (298, 73308), (328, 66603), (447, 48872), (492, 44402), (596, 36654), (894, 24436), (984, 22201), (1192, 18327), (1788, 12218), (3576, 6109)]