78128217

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{571}}^1\times {\mathrm{661}}^1$

素因数の和:1261

約数の個数: 24

約数和(自身を含む): 118143168

約数和(自身を除く): 40014951

約数列:

[1, 3, 9, 23, 69, 207, 571, 661, 1713, 1983, 5139, 5949, 13133, 15203, 39399, 45609, 118197, 136827, 377431, 1132293, 3396879, 8680913, 26042739, 78128217]

約数ペア:

[(1, 78128217), (3, 26042739), (9, 8680913), (23, 3396879), (69, 1132293), (207, 377431), (571, 136827), (661, 118197), (1713, 45609), (1983, 39399), (5139, 15203), (5949, 13133)]