21750282

素因数分解:

$2^1\times 3^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:177

約数の個数: 80

約数和(自身を含む): 51853824

約数和(自身を除く): 30103542

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 61, 62, 71, 81, 93, 122, 142, 162, 183, 186, 213, 279, 366, 426, 549, 558, 639, 837, 1098, 1278, 1647, 1674, 1891, 1917, 2201, 2511, 3294, 3782, 3834, 4331, 4402, 4941, 5022, 5673, 5751, 6603, 8662, 9882, 11346, 11502, 12993, 13206, 17019, 19809, 25986, 34038, 38979, 39618, 51057, 59427, 77958, 102114, 116937, 118854, 134261, 153171, 178281, 233874, 268522, 306342, 350811, 356562, 402783, 701622, 805566, 1208349, 2416698, 3625047, 7250094, 10875141, 21750282]

約数ペア:

[(1, 21750282), (2, 10875141), (3, 7250094), (6, 3625047), (9, 2416698), (18, 1208349), (27, 805566), (31, 701622), (54, 402783), (61, 356562), (62, 350811), (71, 306342), (81, 268522), (93, 233874), (122, 178281), (142, 153171), (162, 134261), (183, 118854), (186, 116937), (213, 102114), (279, 77958), (366, 59427), (426, 51057), (549, 39618), (558, 38979), (639, 34038), (837, 25986), (1098, 19809), (1278, 17019), (1647, 13206), (1674, 12993), (1891, 11502), (1917, 11346), (2201, 9882), (2511, 8662), (3294, 6603), (3782, 5751), (3834, 5673), (4331, 5022), (4402, 4941)]