28748343

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 44174592

約数和(自身を除く): 15426249

約数列:

[1, 3, 13, 17, 39, 51, 131, 221, 331, 393, 663, 993, 1703, 2227, 4303, 5109, 5627, 6681, 12909, 16881, 28951, 43361, 73151, 86853, 130083, 219453, 563693, 737137, 1691079, 2211411, 9582781, 28748343]

約数ペア:

[(1, 28748343), (3, 9582781), (13, 2211411), (17, 1691079), (39, 737137), (51, 563693), (131, 219453), (221, 130083), (331, 86853), (393, 73151), (663, 43361), (993, 28951), (1703, 16881), (2227, 12909), (4303, 6681), (5109, 5627)]