21404267920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38221907}}^1$

素因数の和:38221927

約数の個数: 40

約数和(自身を含む): 56874199104

約数和(自身を除く): 35469931184

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38221907, 76443814, 152887628, 191109535, 267553349, 305775256, 382219070, 535106698, 611550512, 764438140, 1070213396, 1337766745, 1528876280, 2140426792, 2675533490, 3057752560, 4280853584, 5351066980, 10702133960, 21404267920]

約数ペア:

[(1, 21404267920), (2, 10702133960), (4, 5351066980), (5, 4280853584), (7, 3057752560), (8, 2675533490), (10, 2140426792), (14, 1528876280), (16, 1337766745), (20, 1070213396), (28, 764438140), (35, 611550512), (40, 535106698), (56, 382219070), (70, 305775256), (80, 267553349), (112, 191109535), (140, 152887628), (280, 76443814), (560, 38221907)]