205651551

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{3067}}^1$

素因数の和:3211

約数の個数: 32

約数和(自身を含む): 326729728

約数和(自身を除く): 121078177

約数列:

[1, 3, 7, 21, 31, 93, 103, 217, 309, 651, 721, 2163, 3067, 3193, 9201, 9579, 21469, 22351, 64407, 67053, 95077, 285231, 315901, 665539, 947703, 1996617, 2211307, 6633921, 9792931, 29378793, 68550517, 205651551]

約数ペア:

[(1, 205651551), (3, 68550517), (7, 29378793), (21, 9792931), (31, 6633921), (93, 2211307), (103, 1996617), (217, 947703), (309, 665539), (651, 315901), (721, 285231), (2163, 95077), (3067, 67053), (3193, 64407), (9201, 22351), (9579, 21469)]