19871948

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{701}}^1$

素因数の和:1097

約数の個数: 24

約数和(自身を含む): 36756720

約数和(自身を除く): 16884772

約数列:

[1, 2, 4, 19, 38, 76, 373, 701, 746, 1402, 1492, 2804, 7087, 13319, 14174, 26638, 28348, 53276, 261473, 522946, 1045892, 4967987, 9935974, 19871948]

約数ペア:

[(1, 19871948), (2, 9935974), (4, 4967987), (19, 1045892), (38, 522946), (76, 261473), (373, 53276), (701, 28348), (746, 26638), (1402, 14174), (1492, 13319), (2804, 7087)]