15721858943

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1\times {\mathrm{2591}}^1$

素因数の和:3119

約数の個数: 32

約数和(自身を含む): 18901278720

約数和(自身を除く): 3179419777

約数列:

[1, 7, 29, 71, 203, 421, 497, 2059, 2591, 2947, 12209, 14413, 18137, 29891, 75139, 85463, 183961, 209237, 525973, 866839, 1090811, 1287727, 5334869, 6067873, 7635677, 31633519, 37344083, 77447581, 221434633, 542133067, 2245979849, 15721858943]

約数ペア:

[(1, 15721858943), (7, 2245979849), (29, 542133067), (71, 221434633), (203, 77447581), (421, 37344083), (497, 31633519), (2059, 7635677), (2591, 6067873), (2947, 5334869), (12209, 1287727), (14413, 1090811), (18137, 866839), (29891, 525973), (75139, 209237), (85463, 183961)]