21215286

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:174

約数の個数: 96

約数和(自身を含む): 53071200

約数和(自身を除く): 31855914

約数列:

[1, 2, 3, 6, 9, 17, 18, 19, 34, 38, 41, 51, 57, 82, 89, 102, 114, 123, 153, 171, 178, 246, 267, 306, 323, 342, 369, 534, 646, 697, 738, 779, 801, 969, 1394, 1513, 1558, 1602, 1691, 1938, 2091, 2337, 2907, 3026, 3382, 3649, 4182, 4539, 4674, 5073, 5814, 6273, 7011, 7298, 9078, 10146, 10947, 12546, 13243, 13617, 14022, 15219, 21894, 26486, 27234, 28747, 30438, 32841, 39729, 57494, 62033, 65682, 69331, 79458, 86241, 119187, 124066, 138662, 172482, 186099, 207993, 238374, 258723, 372198, 415986, 517446, 558297, 623979, 1116594, 1178627, 1247958, 2357254, 3535881, 7071762, 10607643, 21215286]

約数ペア:

[(1, 21215286), (2, 10607643), (3, 7071762), (6, 3535881), (9, 2357254), (17, 1247958), (18, 1178627), (19, 1116594), (34, 623979), (38, 558297), (41, 517446), (51, 415986), (57, 372198), (82, 258723), (89, 238374), (102, 207993), (114, 186099), (123, 172482), (153, 138662), (171, 124066), (178, 119187), (246, 86241), (267, 79458), (306, 69331), (323, 65682), (342, 62033), (369, 57494), (534, 39729), (646, 32841), (697, 30438), (738, 28747), (779, 27234), (801, 26486), (969, 21894), (1394, 15219), (1513, 14022), (1558, 13617), (1602, 13243), (1691, 12546), (1938, 10947), (2091, 10146), (2337, 9078), (2907, 7298), (3026, 7011), (3382, 6273), (3649, 5814), (4182, 5073), (4539, 4674)]