19515381263

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{63389}}^1$

素因数の和:63567

約数の個数: 24

約数和(自身を含む): 23298107040

約数和(自身を除く): 3782725777

約数列:

[1, 7, 49, 61, 103, 427, 721, 2989, 5047, 6283, 43981, 63389, 307867, 443723, 3106061, 3866729, 6529067, 27067103, 45703469, 189469721, 319924283, 398273087, 2787911609, 19515381263]

約数ペア:

[(1, 19515381263), (7, 2787911609), (49, 398273087), (61, 319924283), (103, 189469721), (427, 45703469), (721, 27067103), (2989, 6529067), (5047, 3866729), (6283, 3106061), (43981, 443723), (63389, 307867)]