21517272

素因数分解:

$2^3\times 3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:155

約数の個数: 192

約数和(自身を含む): 73872000

約数和(自身を除く): 52354728

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 19, 21, 24, 27, 28, 36, 38, 42, 49, 54, 56, 57, 63, 72, 76, 84, 98, 107, 108, 114, 126, 133, 147, 152, 168, 171, 189, 196, 214, 216, 228, 252, 266, 294, 321, 342, 378, 392, 399, 428, 441, 456, 504, 513, 532, 588, 642, 684, 749, 756, 798, 856, 882, 931, 963, 1026, 1064, 1176, 1197, 1284, 1323, 1368, 1498, 1512, 1596, 1764, 1862, 1926, 2033, 2052, 2247, 2394, 2568, 2646, 2793, 2889, 2996, 3192, 3528, 3591, 3724, 3852, 4066, 4104, 4494, 4788, 5243, 5292, 5586, 5778, 5992, 6099, 6741, 7182, 7448, 7704, 8132, 8379, 8988, 9576, 10486, 10584, 11172, 11556, 12198, 13482, 14231, 14364, 15729, 16264, 16758, 17976, 18297, 20223, 20972, 22344, 23112, 24396, 25137, 26964, 28462, 28728, 31458, 33516, 36594, 40446, 41944, 42693, 47187, 48792, 50274, 53928, 54891, 56924, 62916, 67032, 73188, 80892, 85386, 94374, 99617, 100548, 109782, 113848, 125832, 128079, 141561, 146376, 161784, 170772, 188748, 199234, 201096, 219564, 256158, 283122, 298851, 341544, 377496, 384237, 398468, 439128, 512316, 566244, 597702, 768474, 796936, 896553, 1024632, 1132488, 1195404, 1536948, 1793106, 2390808, 2689659, 3073896, 3586212, 5379318, 7172424, 10758636, 21517272]

約数ペア:

[(1, 21517272), (2, 10758636), (3, 7172424), (4, 5379318), (6, 3586212), (7, 3073896), (8, 2689659), (9, 2390808), (12, 1793106), (14, 1536948), (18, 1195404), (19, 1132488), (21, 1024632), (24, 896553), (27, 796936), (28, 768474), (36, 597702), (38, 566244), (42, 512316), (49, 439128), (54, 398468), (56, 384237), (57, 377496), (63, 341544), (72, 298851), (76, 283122), (84, 256158), (98, 219564), (107, 201096), (108, 199234), (114, 188748), (126, 170772), (133, 161784), (147, 146376), (152, 141561), (168, 128079), (171, 125832), (189, 113848), (196, 109782), (214, 100548), (216, 99617), (228, 94374), (252, 85386), (266, 80892), (294, 73188), (321, 67032), (342, 62916), (378, 56924), (392, 54891), (399, 53928), (428, 50274), (441, 48792), (456, 47187), (504, 42693), (513, 41944), (532, 40446), (588, 36594), (642, 33516), (684, 31458), (749, 28728), (756, 28462), (798, 26964), (856, 25137), (882, 24396), (931, 23112), (963, 22344), (1026, 20972), (1064, 20223), (1176, 18297), (1197, 17976), (1284, 16758), (1323, 16264), (1368, 15729), (1498, 14364), (1512, 14231), (1596, 13482), (1764, 12198), (1862, 11556), (1926, 11172), (2033, 10584), (2052, 10486), (2247, 9576), (2394, 8988), (2568, 8379), (2646, 8132), (2793, 7704), (2889, 7448), (2996, 7182), (3192, 6741), (3528, 6099), (3591, 5992), (3724, 5778), (3852, 5586), (4066, 5292), (4104, 5243), (4494, 4788)]