21000298473

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{51449}}^1$

素因数の和:51523

約数の個数: 96

約数和(自身を含む): 41094144000

約数和(自身を除く): 20093845527

約数列:

[1, 3, 7, 9, 11, 19, 21, 31, 33, 57, 63, 77, 93, 99, 133, 171, 209, 217, 231, 279, 341, 399, 589, 627, 651, 693, 1023, 1197, 1463, 1767, 1881, 1953, 2387, 3069, 4123, 4389, 5301, 6479, 7161, 12369, 13167, 19437, 21483, 37107, 45353, 51449, 58311, 136059, 154347, 360143, 408177, 463041, 565939, 977531, 1080429, 1594919, 1697817, 2932593, 3241287, 3961573, 4784757, 5093451, 6842717, 8797779, 10752841, 11164433, 11884719, 14354271, 17544109, 20528151, 30303461, 32258523, 33493299, 35654157, 52632327, 61584453, 75269887, 90910383, 96775569, 100479897, 122808763, 157896981, 212124227, 225809661, 272731149, 333338071, 368426289, 636372681, 677428983, 1000014213, 1105278867, 1909118043, 2333366497, 3000042639, 7000099491, 21000298473]

約数ペア:

[(1, 21000298473), (3, 7000099491), (7, 3000042639), (9, 2333366497), (11, 1909118043), (19, 1105278867), (21, 1000014213), (31, 677428983), (33, 636372681), (57, 368426289), (63, 333338071), (77, 272731149), (93, 225809661), (99, 212124227), (133, 157896981), (171, 122808763), (209, 100479897), (217, 96775569), (231, 90910383), (279, 75269887), (341, 61584453), (399, 52632327), (589, 35654157), (627, 33493299), (651, 32258523), (693, 30303461), (1023, 20528151), (1197, 17544109), (1463, 14354271), (1767, 11884719), (1881, 11164433), (1953, 10752841), (2387, 8797779), (3069, 6842717), (4123, 5093451), (4389, 4784757), (5301, 3961573), (6479, 3241287), (7161, 2932593), (12369, 1697817), (13167, 1594919), (19437, 1080429), (21483, 977531), (37107, 565939), (45353, 463041), (51449, 408177), (58311, 360143), (136059, 154347)]