21631400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{15451}}^1$

素因数の和:15474

約数の個数: 48

約数和(自身を含む): 57481440

約数和(自身を除く): 35850040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 15451, 30902, 61804, 77255, 108157, 123608, 154510, 216314, 309020, 386275, 432628, 540785, 618040, 772550, 865256, 1081570, 1545100, 2163140, 2703925, 3090200, 4326280, 5407850, 10815700, 21631400]

約数ペア:

[(1, 21631400), (2, 10815700), (4, 5407850), (5, 4326280), (7, 3090200), (8, 2703925), (10, 2163140), (14, 1545100), (20, 1081570), (25, 865256), (28, 772550), (35, 618040), (40, 540785), (50, 432628), (56, 386275), (70, 309020), (100, 216314), (140, 154510), (175, 123608), (200, 108157), (280, 77255), (350, 61804), (700, 30902), (1400, 15451)]