31523793

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{47}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 52930560

約数和(自身を除く): 21406767

約数列:

[1, 3, 7, 19, 21, 41, 47, 57, 123, 133, 141, 287, 329, 399, 779, 861, 893, 987, 1681, 1927, 2337, 2679, 5043, 5453, 5781, 6251, 11767, 13489, 16359, 18753, 31939, 35301, 36613, 40467, 79007, 95817, 109839, 223573, 237021, 256291, 553049, 670719, 768873, 1501133, 1659147, 4503399, 10507931, 31523793]

約数ペア:

[(1, 31523793), (3, 10507931), (7, 4503399), (19, 1659147), (21, 1501133), (41, 768873), (47, 670719), (57, 553049), (123, 256291), (133, 237021), (141, 223573), (287, 109839), (329, 95817), (399, 79007), (779, 40467), (861, 36613), (893, 35301), (987, 31939), (1681, 18753), (1927, 16359), (2337, 13489), (2679, 11767), (5043, 6251), (5453, 5781)]