21415009

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{593}}^1$

素因数の和:685

約数の個数: 24

約数和(自身を含む): 27628128

約数和(自身を除く): 6213119

約数列:

[1, 7, 11, 49, 67, 77, 469, 539, 593, 737, 3283, 4151, 5159, 6523, 29057, 36113, 39731, 45661, 278117, 319627, 437041, 1946819, 3059287, 21415009]

約数ペア:

[(1, 21415009), (7, 3059287), (11, 1946819), (49, 437041), (67, 319627), (77, 278117), (469, 45661), (539, 39731), (593, 36113), (737, 29057), (3283, 6523), (4151, 5159)]