21198739

素因数分解:

${\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:330

約数の個数: 16

約数和(自身を含む): 22763520

約数和(自身を除く): 1564781

約数列:

[1, 29, 47, 103, 151, 1363, 2987, 4379, 4841, 7097, 15553, 140389, 205813, 451037, 730991, 21198739]

約数ペア:

[(1, 21198739), (29, 730991), (47, 451037), (103, 205813), (151, 140389), (1363, 15553), (2987, 7097), (4379, 4841)]