18913748

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{107}}^2$

素因数の和:284

約数の個数: 36

約数和(自身を含む): 38831520

約数和(自身を除く): 19917772

約数列:

[1, 2, 4, 7, 14, 28, 59, 107, 118, 214, 236, 413, 428, 749, 826, 1498, 1652, 2996, 6313, 11449, 12626, 22898, 25252, 44191, 45796, 80143, 88382, 160286, 176764, 320572, 675491, 1350982, 2701964, 4728437, 9456874, 18913748]

約数ペア:

[(1, 18913748), (2, 9456874), (4, 4728437), (7, 2701964), (14, 1350982), (28, 675491), (59, 320572), (107, 176764), (118, 160286), (214, 88382), (236, 80143), (413, 45796), (428, 44191), (749, 25252), (826, 22898), (1498, 12626), (1652, 11449), (2996, 6313)]