21000751224

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{677}}^1\times {\mathrm{1153}}^1$

素因数の和:1917

約数の個数: 128

約数和(自身を含む): 56333664000

約数和(自身を除く): 35332912776

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 59, 76, 114, 118, 152, 177, 228, 236, 354, 456, 472, 677, 708, 1121, 1153, 1354, 1416, 2031, 2242, 2306, 2708, 3363, 3459, 4062, 4484, 4612, 5416, 6726, 6918, 8124, 8968, 9224, 12863, 13452, 13836, 16248, 21907, 25726, 26904, 27672, 38589, 39943, 43814, 51452, 65721, 68027, 77178, 79886, 87628, 102904, 119829, 131442, 136054, 154356, 159772, 175256, 204081, 239658, 262884, 272108, 308712, 319544, 408162, 479316, 525768, 544216, 758917, 780581, 816324, 958632, 1292513, 1517834, 1561162, 1632648, 2276751, 2341743, 2585026, 3035668, 3122324, 3877539, 4553502, 4683486, 5170052, 6071336, 6244648, 7755078, 9107004, 9366972, 10340104, 14831039, 15510156, 18214008, 18733944, 29662078, 31020312, 44493117, 46054279, 59324156, 88986234, 92108558, 118648312, 138162837, 177972468, 184217116, 276325674, 355944936, 368434232, 552651348, 875031301, 1105302696, 1750062602, 2625093903, 3500125204, 5250187806, 7000250408, 10500375612, 21000751224]

約数ペア:

[(1, 21000751224), (2, 10500375612), (3, 7000250408), (4, 5250187806), (6, 3500125204), (8, 2625093903), (12, 1750062602), (19, 1105302696), (24, 875031301), (38, 552651348), (57, 368434232), (59, 355944936), (76, 276325674), (114, 184217116), (118, 177972468), (152, 138162837), (177, 118648312), (228, 92108558), (236, 88986234), (354, 59324156), (456, 46054279), (472, 44493117), (677, 31020312), (708, 29662078), (1121, 18733944), (1153, 18214008), (1354, 15510156), (1416, 14831039), (2031, 10340104), (2242, 9366972), (2306, 9107004), (2708, 7755078), (3363, 6244648), (3459, 6071336), (4062, 5170052), (4484, 4683486), (4612, 4553502), (5416, 3877539), (6726, 3122324), (6918, 3035668), (8124, 2585026), (8968, 2341743), (9224, 2276751), (12863, 1632648), (13452, 1561162), (13836, 1517834), (16248, 1292513), (21907, 958632), (25726, 816324), (26904, 780581), (27672, 758917), (38589, 544216), (39943, 525768), (43814, 479316), (51452, 408162), (65721, 319544), (68027, 308712), (77178, 272108), (79886, 262884), (87628, 239658), (102904, 204081), (119829, 175256), (131442, 159772), (136054, 154356)]