31217571

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{421}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 56878848

約数和(自身を除く): 25661277

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 107, 231, 321, 421, 693, 749, 963, 1177, 1263, 2247, 2947, 3531, 3789, 4631, 6741, 8239, 8841, 10593, 13893, 24717, 26523, 32417, 41679, 45047, 74151, 97251, 135141, 291753, 315329, 405423, 495517, 945987, 1486551, 2837961, 3468619, 4459653, 10405857, 31217571]

約数ペア:

[(1, 31217571), (3, 10405857), (7, 4459653), (9, 3468619), (11, 2837961), (21, 1486551), (33, 945987), (63, 495517), (77, 405423), (99, 315329), (107, 291753), (231, 135141), (321, 97251), (421, 74151), (693, 45047), (749, 41679), (963, 32417), (1177, 26523), (1263, 24717), (2247, 13893), (2947, 10593), (3531, 8841), (3789, 8239), (4631, 6741)]