19055556

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2143}}^1$

素因数の和:2185

約数の個数: 72

約数和(自身を含む): 54629120

約数和(自身を除く): 35573564

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2143, 2223, 2964, 4286, 4446, 6429, 8572, 8892, 12858, 19287, 25716, 27859, 38574, 40717, 55718, 77148, 81434, 83577, 111436, 122151, 162868, 167154, 244302, 250731, 334308, 366453, 488604, 501462, 529321, 732906, 1002924, 1058642, 1465812, 1587963, 2117284, 3175926, 4763889, 6351852, 9527778, 19055556]

約数ペア:

[(1, 19055556), (2, 9527778), (3, 6351852), (4, 4763889), (6, 3175926), (9, 2117284), (12, 1587963), (13, 1465812), (18, 1058642), (19, 1002924), (26, 732906), (36, 529321), (38, 501462), (39, 488604), (52, 366453), (57, 334308), (76, 250731), (78, 244302), (114, 167154), (117, 162868), (156, 122151), (171, 111436), (228, 83577), (234, 81434), (247, 77148), (342, 55718), (468, 40717), (494, 38574), (684, 27859), (741, 25716), (988, 19287), (1482, 12858), (2143, 8892), (2223, 8572), (2964, 6429), (4286, 4446)]