19802252

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1997}}^1$

素因数の和:2105

約数の個数: 24

約数和(自身を含む): 36139824

約数和(自身を除く): 16337572

約数列:

[1, 2, 4, 37, 67, 74, 134, 148, 268, 1997, 2479, 3994, 4958, 7988, 9916, 73889, 133799, 147778, 267598, 295556, 535196, 4950563, 9901126, 19802252]

約数ペア:

[(1, 19802252), (2, 9901126), (4, 4950563), (37, 535196), (67, 295556), (74, 267598), (134, 147778), (148, 133799), (268, 73889), (1997, 9916), (2479, 7988), (3994, 4958)]