31415671

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 39283200

約数和(自身を除く): 7867529

約数列:

[1, 7, 29, 43, 59, 61, 203, 301, 413, 427, 1247, 1711, 1769, 2537, 2623, 3599, 8729, 11977, 12383, 17759, 18361, 25193, 73573, 76067, 104371, 154757, 515011, 532469, 730597, 1083299, 4487953, 31415671]

約数ペア:

[(1, 31415671), (7, 4487953), (29, 1083299), (43, 730597), (59, 532469), (61, 515011), (203, 154757), (301, 104371), (413, 76067), (427, 73573), (1247, 25193), (1711, 18361), (1769, 17759), (2537, 12383), (2623, 11977), (3599, 8729)]