19395181

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 24192000

約数和(自身を除く): 4796819

約数列:

[1, 13, 17, 19, 31, 149, 221, 247, 323, 403, 527, 589, 1937, 2533, 2831, 4199, 4619, 6851, 7657, 10013, 32929, 36803, 48127, 60047, 78523, 87761, 130169, 625651, 1020799, 1140893, 1491937, 19395181]

約数ペア:

[(1, 19395181), (13, 1491937), (17, 1140893), (19, 1020799), (31, 625651), (149, 130169), (221, 87761), (247, 78523), (323, 60047), (403, 48127), (527, 36803), (589, 32929), (1937, 10013), (2533, 7657), (2831, 6851), (4199, 4619)]