21005424

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 120

約数和(自身を含む): 65286000

約数和(自身を除く): 44280576

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 88, 89, 99, 132, 144, 149, 176, 178, 198, 264, 267, 298, 356, 396, 447, 528, 534, 596, 712, 792, 801, 894, 979, 1068, 1192, 1341, 1424, 1584, 1602, 1639, 1788, 1958, 2136, 2384, 2682, 2937, 3204, 3278, 3576, 3916, 4272, 4917, 5364, 5874, 6408, 6556, 7152, 7832, 8811, 9834, 10728, 11748, 12816, 13112, 13261, 14751, 15664, 17622, 19668, 21456, 23496, 26224, 26522, 29502, 35244, 39336, 39783, 46992, 53044, 59004, 70488, 78672, 79566, 106088, 118008, 119349, 140976, 145871, 159132, 212176, 236016, 238698, 291742, 318264, 437613, 477396, 583484, 636528, 875226, 954792, 1166968, 1312839, 1750452, 1909584, 2333936, 2625678, 3500904, 5251356, 7001808, 10502712, 21005424]

約数ペア:

[(1, 21005424), (2, 10502712), (3, 7001808), (4, 5251356), (6, 3500904), (8, 2625678), (9, 2333936), (11, 1909584), (12, 1750452), (16, 1312839), (18, 1166968), (22, 954792), (24, 875226), (33, 636528), (36, 583484), (44, 477396), (48, 437613), (66, 318264), (72, 291742), (88, 238698), (89, 236016), (99, 212176), (132, 159132), (144, 145871), (149, 140976), (176, 119349), (178, 118008), (198, 106088), (264, 79566), (267, 78672), (298, 70488), (356, 59004), (396, 53044), (447, 46992), (528, 39783), (534, 39336), (596, 35244), (712, 29502), (792, 26522), (801, 26224), (894, 23496), (979, 21456), (1068, 19668), (1192, 17622), (1341, 15664), (1424, 14751), (1584, 13261), (1602, 13112), (1639, 12816), (1788, 11748), (1958, 10728), (2136, 9834), (2384, 8811), (2682, 7832), (2937, 7152), (3204, 6556), (3278, 6408), (3576, 5874), (3916, 5364), (4272, 4917)]