21000837795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{1699}}^1\times {\mathrm{117721}}^1$

素因数の和:119435

約数の個数: 32

約数和(自身を含む): 38424460800

約数和(自身を除く): 17423623005

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 1699, 5097, 8495, 11893, 25485, 35679, 59465, 117721, 178395, 353163, 588605, 824047, 1765815, 2472141, 4120235, 12360705, 200007979, 600023937, 1000039895, 1400055853, 3000119685, 4200167559, 7000279265, 21000837795]

約数ペア:

[(1, 21000837795), (3, 7000279265), (5, 4200167559), (7, 3000119685), (15, 1400055853), (21, 1000039895), (35, 600023937), (105, 200007979), (1699, 12360705), (5097, 4120235), (8495, 2472141), (11893, 1765815), (25485, 824047), (35679, 588605), (59465, 353163), (117721, 178395)]