21904250

素因数分解:

$2^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{2137}}^1$

素因数の和:2195

約数の個数: 32

約数和(自身を含む): 42024528

約数和(自身を除く): 20120278

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 125, 205, 250, 410, 1025, 2050, 2137, 4274, 5125, 10250, 10685, 21370, 53425, 87617, 106850, 175234, 267125, 438085, 534250, 876170, 2190425, 4380850, 10952125, 21904250]

約数ペア:

[(1, 21904250), (2, 10952125), (5, 4380850), (10, 2190425), (25, 876170), (41, 534250), (50, 438085), (82, 267125), (125, 175234), (205, 106850), (250, 87617), (410, 53425), (1025, 21370), (2050, 10685), (2137, 10250), (4274, 5125)]