21535850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1663}}^1$

素因数の和:1719

約数の個数: 48

約数和(自身を含む): 47044608

約数和(自身を除く): 25508758

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 37, 50, 70, 74, 175, 185, 259, 350, 370, 518, 925, 1295, 1663, 1850, 2590, 3326, 6475, 8315, 11641, 12950, 16630, 23282, 41575, 58205, 61531, 83150, 116410, 123062, 291025, 307655, 430717, 582050, 615310, 861434, 1538275, 2153585, 3076550, 4307170, 10767925, 21535850]

約数ペア:

[(1, 21535850), (2, 10767925), (5, 4307170), (7, 3076550), (10, 2153585), (14, 1538275), (25, 861434), (35, 615310), (37, 582050), (50, 430717), (70, 307655), (74, 291025), (175, 123062), (185, 116410), (259, 83150), (350, 61531), (370, 58205), (518, 41575), (925, 23282), (1295, 16630), (1663, 12950), (1850, 11641), (2590, 8315), (3326, 6475)]