31569279

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 52531200

約数和(自身を除く): 20961921

約数列:

[1, 3, 7, 19, 21, 49, 57, 89, 127, 133, 147, 267, 381, 399, 623, 889, 931, 1691, 1869, 2413, 2667, 2793, 4361, 5073, 6223, 7239, 11303, 11837, 13083, 16891, 18669, 33909, 35511, 50673, 79121, 82859, 118237, 214757, 237363, 248577, 354711, 553847, 644271, 1503299, 1661541, 4509897, 10523093, 31569279]

約数ペア:

[(1, 31569279), (3, 10523093), (7, 4509897), (19, 1661541), (21, 1503299), (49, 644271), (57, 553847), (89, 354711), (127, 248577), (133, 237363), (147, 214757), (267, 118237), (381, 82859), (399, 79121), (623, 50673), (889, 35511), (931, 33909), (1691, 18669), (1869, 16891), (2413, 13083), (2667, 11837), (2793, 11303), (4361, 7239), (5073, 6223)]