261799309

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 300303360

約数和(自身を除く): 38504051

約数列:

[1, 19, 31, 37, 41, 293, 589, 703, 779, 1147, 1271, 1517, 5567, 9083, 10841, 12013, 21793, 24149, 28823, 47027, 172577, 205979, 228247, 336071, 372403, 444481, 893513, 6385349, 7075657, 8445139, 13778911, 261799309]

約数ペア:

[(1, 261799309), (19, 13778911), (31, 8445139), (37, 7075657), (41, 6385349), (293, 893513), (589, 444481), (703, 372403), (779, 336071), (1147, 228247), (1271, 205979), (1517, 172577), (5567, 47027), (9083, 28823), (10841, 24149), (12013, 21793)]