21000723292816

素因数分解:

$2^4\times {\mathrm{311}}^1\times {\mathrm{331}}^1\times {\mathrm{1877}}^1\times {\mathrm{6793}}^1$

素因数の和:9320

約数の個数: 80

約数和(自身を含む): 40970899801728

約数和(自身を除く): 19970176508912

約数列:

[1, 2, 4, 8, 16, 311, 331, 622, 662, 1244, 1324, 1877, 2488, 2648, 3754, 4976, 5296, 6793, 7508, 13586, 15016, 27172, 30032, 54344, 102941, 108688, 205882, 411764, 583747, 621287, 823528, 1167494, 1242574, 1647056, 2112623, 2248483, 2334988, 2485148, 4225246, 4496966, 4669976, 4970296, 8450492, 8993932, 9339952, 9940592, 12750461, 16900984, 17987864, 25500922, 33801968, 35975728, 51001844, 102003688, 193220257, 204007376, 386440514, 699278213, 772881028, 1398556426, 1545762056, 2797112852, 3091524112, 3965393371, 4220402591, 5594225704, 7930786742, 8440805182, 11188451408, 15861573484, 16881610364, 31723146968, 33763220728, 63446293936, 67526441456, 1312545205801, 2625090411602, 5250180823204, 10500361646408, 21000723292816]

約数ペア:

[(1, 21000723292816), (2, 10500361646408), (4, 5250180823204), (8, 2625090411602), (16, 1312545205801), (311, 67526441456), (331, 63446293936), (622, 33763220728), (662, 31723146968), (1244, 16881610364), (1324, 15861573484), (1877, 11188451408), (2488, 8440805182), (2648, 7930786742), (3754, 5594225704), (4976, 4220402591), (5296, 3965393371), (6793, 3091524112), (7508, 2797112852), (13586, 1545762056), (15016, 1398556426), (27172, 772881028), (30032, 699278213), (54344, 386440514), (102941, 204007376), (108688, 193220257), (205882, 102003688), (411764, 51001844), (583747, 35975728), (621287, 33801968), (823528, 25500922), (1167494, 17987864), (1242574, 16900984), (1647056, 12750461), (2112623, 9940592), (2248483, 9339952), (2334988, 8993932), (2485148, 8450492), (4225246, 4970296), (4496966, 4669976)]