19871128

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{283}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 38237760

約数和(自身を除く): 18366632

約数列:

[1, 2, 4, 8, 67, 131, 134, 262, 268, 283, 524, 536, 566, 1048, 1132, 2264, 8777, 17554, 18961, 35108, 37073, 37922, 70216, 74146, 75844, 148292, 151688, 296584, 2483891, 4967782, 9935564, 19871128]

約数ペア:

[(1, 19871128), (2, 9935564), (4, 4967782), (8, 2483891), (67, 296584), (131, 151688), (134, 148292), (262, 75844), (268, 74146), (283, 70216), (524, 37922), (536, 37073), (566, 35108), (1048, 18961), (1132, 17554), (2264, 8777)]