31447857

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 51597312

約数和(自身を除く): 20149455

約数列:

[1, 3, 7, 21, 31, 49, 67, 93, 103, 147, 201, 217, 309, 469, 651, 721, 1407, 1519, 2077, 2163, 3193, 3283, 4557, 5047, 6231, 6901, 9579, 9849, 14539, 15141, 20703, 22351, 43617, 48307, 67053, 101773, 144921, 156457, 213931, 305319, 338149, 469371, 641793, 1014447, 1497517, 4492551, 10482619, 31447857]

約数ペア:

[(1, 31447857), (3, 10482619), (7, 4492551), (21, 1497517), (31, 1014447), (49, 641793), (67, 469371), (93, 338149), (103, 305319), (147, 213931), (201, 156457), (217, 144921), (309, 101773), (469, 67053), (651, 48307), (721, 43617), (1407, 22351), (1519, 20703), (2077, 15141), (2163, 14539), (3193, 9849), (3283, 9579), (4557, 6901), (5047, 6231)]