19945128

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{523}}^1$

素因数の和:766

約数の個数: 64

約数和(自身を含む): 57346560

約数和(自身を除く): 37401432

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 227, 454, 523, 681, 908, 1046, 1362, 1569, 1589, 1816, 2092, 2724, 3138, 3178, 3661, 4184, 4767, 5448, 6276, 6356, 7322, 9534, 10983, 12552, 12712, 14644, 19068, 21966, 29288, 38136, 43932, 87864, 118721, 237442, 356163, 474884, 712326, 831047, 949768, 1424652, 1662094, 2493141, 2849304, 3324188, 4986282, 6648376, 9972564, 19945128]

約数ペア:

[(1, 19945128), (2, 9972564), (3, 6648376), (4, 4986282), (6, 3324188), (7, 2849304), (8, 2493141), (12, 1662094), (14, 1424652), (21, 949768), (24, 831047), (28, 712326), (42, 474884), (56, 356163), (84, 237442), (168, 118721), (227, 87864), (454, 43932), (523, 38136), (681, 29288), (908, 21966), (1046, 19068), (1362, 14644), (1569, 12712), (1589, 12552), (1816, 10983), (2092, 9534), (2724, 7322), (3138, 6356), (3178, 6276), (3661, 5448), (4184, 4767)]