28634781

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 45308160

約数和(自身を除く): 16673379

約数列:

[1, 3, 7, 21, 37, 111, 137, 259, 269, 411, 777, 807, 959, 1883, 2877, 5069, 5649, 9953, 15207, 29859, 35483, 36853, 69671, 106449, 110559, 209013, 257971, 773913, 1363561, 4090683, 9544927, 28634781]

約数ペア:

[(1, 28634781), (3, 9544927), (7, 4090683), (21, 1363561), (37, 773913), (111, 257971), (137, 209013), (259, 110559), (269, 106449), (411, 69671), (777, 36853), (807, 35483), (959, 29859), (1883, 15207), (2877, 9953), (5069, 5649)]