19958764

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{10639}}^1$

素因数の和:10717

約数の個数: 24

約数和(自身を含む): 40517120

約数和(自身を除く): 20558356

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 938, 1876, 10639, 21278, 42556, 74473, 148946, 297892, 712813, 1425626, 2851252, 4989691, 9979382, 19958764]

約数ペア:

[(1, 19958764), (2, 9979382), (4, 4989691), (7, 2851252), (14, 1425626), (28, 712813), (67, 297892), (134, 148946), (268, 74473), (469, 42556), (938, 21278), (1876, 10639)]