28727601

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71999}}^1$

素因数の和:72028

約数の個数: 16

約数和(自身を含む): 46080000

約数和(自身を除く): 17352399

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 71999, 215997, 503993, 1367981, 1511979, 4103943, 9575867, 28727601]

約数ペア:

[(1, 28727601), (3, 9575867), (7, 4103943), (19, 1511979), (21, 1367981), (57, 503993), (133, 215997), (399, 71999)]