21506716

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69827}}^1$

素因数の和:69849

約数の個数: 24

約数和(自身を含む): 46924416

約数和(自身を除く): 25417700

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69827, 139654, 279308, 488789, 768097, 977578, 1536194, 1955156, 3072388, 5376679, 10753358, 21506716]

約数ペア:

[(1, 21506716), (2, 10753358), (4, 5376679), (7, 3072388), (11, 1955156), (14, 1536194), (22, 977578), (28, 768097), (44, 488789), (77, 279308), (154, 139654), (308, 69827)]