205317217

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 249790464

約数和(自身を除く): 44473247

約数列:

[1, 7, 41, 43, 127, 131, 287, 301, 889, 917, 1763, 5207, 5371, 5461, 5633, 12341, 16637, 36449, 37597, 38227, 39431, 116459, 223901, 230953, 682117, 715391, 1567307, 1616671, 4774819, 5007737, 29331031, 205317217]

約数ペア:

[(1, 205317217), (7, 29331031), (41, 5007737), (43, 4774819), (127, 1616671), (131, 1567307), (287, 715391), (301, 682117), (889, 230953), (917, 223901), (1763, 116459), (5207, 39431), (5371, 38227), (5461, 37597), (5633, 36449), (12341, 16637)]