210867215

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{257}}^1\times {\mathrm{971}}^1$

素因数の和:1259

約数の個数: 24

約数和(自身を含む): 275352048

約数和(自身を除く): 64484833

約数列:

[1, 5, 13, 65, 169, 257, 845, 971, 1285, 3341, 4855, 12623, 16705, 43433, 63115, 164099, 217165, 249547, 820495, 1247735, 3244111, 16220555, 42173443, 210867215]

約数ペア:

[(1, 210867215), (5, 42173443), (13, 16220555), (65, 3244111), (169, 1247735), (257, 820495), (845, 249547), (971, 217165), (1285, 164099), (3341, 63115), (4855, 43433), (12623, 16705)]