21000363960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1\times {\mathrm{7481}}^1$

素因数の和:7801

約数の個数: 128

約数和(自身を含む): 63836424000

約数和(自身を除く): 42836060040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 149, 157, 298, 314, 447, 471, 596, 628, 745, 785, 894, 942, 1192, 1256, 1490, 1570, 1788, 1884, 2235, 2355, 2980, 3140, 3576, 3768, 4470, 4710, 5960, 6280, 7481, 8940, 9420, 14962, 17880, 18840, 22443, 23393, 29924, 37405, 44886, 46786, 59848, 70179, 74810, 89772, 93572, 112215, 116965, 140358, 149620, 179544, 187144, 224430, 233930, 280716, 299240, 350895, 448860, 467860, 561432, 701790, 897720, 935720, 1114669, 1174517, 1403580, 2229338, 2349034, 2807160, 3344007, 3523551, 4458676, 4698068, 5573345, 5872585, 6688014, 7047102, 8917352, 9396136, 11146690, 11745170, 13376028, 14094204, 16720035, 17617755, 22293380, 23490340, 26752056, 28188408, 33440070, 35235510, 44586760, 46980680, 66880140, 70471020, 133760280, 140942040, 175003033, 350006066, 525009099, 700012132, 875015165, 1050018198, 1400024264, 1750030330, 2100036396, 2625045495, 3500060660, 4200072792, 5250090990, 7000121320, 10500181980, 21000363960]

約数ペア:

[(1, 21000363960), (2, 10500181980), (3, 7000121320), (4, 5250090990), (5, 4200072792), (6, 3500060660), (8, 2625045495), (10, 2100036396), (12, 1750030330), (15, 1400024264), (20, 1050018198), (24, 875015165), (30, 700012132), (40, 525009099), (60, 350006066), (120, 175003033), (149, 140942040), (157, 133760280), (298, 70471020), (314, 66880140), (447, 46980680), (471, 44586760), (596, 35235510), (628, 33440070), (745, 28188408), (785, 26752056), (894, 23490340), (942, 22293380), (1192, 17617755), (1256, 16720035), (1490, 14094204), (1570, 13376028), (1788, 11745170), (1884, 11146690), (2235, 9396136), (2355, 8917352), (2980, 7047102), (3140, 6688014), (3576, 5872585), (3768, 5573345), (4470, 4698068), (4710, 4458676), (5960, 3523551), (6280, 3344007), (7481, 2807160), (8940, 2349034), (9420, 2229338), (14962, 1403580), (17880, 1174517), (18840, 1114669), (22443, 935720), (23393, 897720), (29924, 701790), (37405, 561432), (44886, 467860), (46786, 448860), (59848, 350895), (70179, 299240), (74810, 280716), (89772, 233930), (93572, 224430), (112215, 187144), (116965, 179544), (140358, 149620)]