21000606786

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{36313}}^1$

素因数の和:36448

約数の個数: 72

約数和(自身を含む): 48563075340

約数和(自身を除く): 27562468554

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 89, 114, 171, 178, 267, 342, 361, 534, 722, 801, 1083, 1602, 1691, 2166, 3249, 3382, 5073, 6498, 10146, 15219, 30438, 32129, 36313, 64258, 72626, 96387, 108939, 192774, 217878, 289161, 326817, 578322, 653634, 689947, 1379894, 2069841, 3231857, 4139682, 6209523, 6463714, 9695571, 12419046, 13108993, 19391142, 26217986, 29086713, 39326979, 58173426, 61405283, 78653958, 117980937, 122810566, 184215849, 235961874, 368431698, 552647547, 1105295094, 1166700377, 2333400754, 3500101131, 7000202262, 10500303393, 21000606786]

約数ペア:

[(1, 21000606786), (2, 10500303393), (3, 7000202262), (6, 3500101131), (9, 2333400754), (18, 1166700377), (19, 1105295094), (38, 552647547), (57, 368431698), (89, 235961874), (114, 184215849), (171, 122810566), (178, 117980937), (267, 78653958), (342, 61405283), (361, 58173426), (534, 39326979), (722, 29086713), (801, 26217986), (1083, 19391142), (1602, 13108993), (1691, 12419046), (2166, 9695571), (3249, 6463714), (3382, 6209523), (5073, 4139682), (6498, 3231857), (10146, 2069841), (15219, 1379894), (30438, 689947), (32129, 653634), (36313, 578322), (64258, 326817), (72626, 289161), (96387, 217878), (108939, 192774)]