19221488

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:334

約数の個数: 80

約数和(自身を含む): 45330432

約数和(自身を除く): 26108944

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 31, 44, 52, 62, 88, 104, 124, 143, 176, 208, 248, 271, 286, 341, 403, 496, 542, 572, 682, 806, 1084, 1144, 1364, 1612, 2168, 2288, 2728, 2981, 3224, 3523, 4336, 4433, 5456, 5962, 6448, 7046, 8401, 8866, 11924, 14092, 16802, 17732, 23848, 28184, 33604, 35464, 38753, 47696, 56368, 67208, 70928, 77506, 92411, 109213, 134416, 155012, 184822, 218426, 310024, 369644, 436852, 620048, 739288, 873704, 1201343, 1478576, 1747408, 2402686, 4805372, 9610744, 19221488]

約数ペア:

[(1, 19221488), (2, 9610744), (4, 4805372), (8, 2402686), (11, 1747408), (13, 1478576), (16, 1201343), (22, 873704), (26, 739288), (31, 620048), (44, 436852), (52, 369644), (62, 310024), (88, 218426), (104, 184822), (124, 155012), (143, 134416), (176, 109213), (208, 92411), (248, 77506), (271, 70928), (286, 67208), (341, 56368), (403, 47696), (496, 38753), (542, 35464), (572, 33604), (682, 28184), (806, 23848), (1084, 17732), (1144, 16802), (1364, 14092), (1612, 11924), (2168, 8866), (2288, 8401), (2728, 7046), (2981, 6448), (3224, 5962), (3523, 5456), (4336, 4433)]