18809316

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 50712480

約数和(自身を除く): 31903164

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 107, 114, 171, 214, 228, 257, 321, 342, 428, 514, 642, 684, 771, 963, 1028, 1284, 1542, 1926, 2033, 2313, 3084, 3852, 4066, 4626, 4883, 6099, 8132, 9252, 9766, 12198, 14649, 18297, 19532, 24396, 27499, 29298, 36594, 43947, 54998, 58596, 73188, 82497, 87894, 109996, 164994, 175788, 247491, 329988, 494982, 522481, 989964, 1044962, 1567443, 2089924, 3134886, 4702329, 6269772, 9404658, 18809316]

約数ペア:

[(1, 18809316), (2, 9404658), (3, 6269772), (4, 4702329), (6, 3134886), (9, 2089924), (12, 1567443), (18, 1044962), (19, 989964), (36, 522481), (38, 494982), (57, 329988), (76, 247491), (107, 175788), (114, 164994), (171, 109996), (214, 87894), (228, 82497), (257, 73188), (321, 58596), (342, 54998), (428, 43947), (514, 36594), (642, 29298), (684, 27499), (771, 24396), (963, 19532), (1028, 18297), (1284, 14649), (1542, 12198), (1926, 9766), (2033, 9252), (2313, 8132), (3084, 6099), (3852, 4883), (4066, 4626)]