21011925

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25469}}^1$

素因数の和:25493

約数の個数: 24

約数和(自身を含む): 37899360

約数和(自身を除く): 16887435

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 25469, 76407, 127345, 280159, 382035, 636725, 840477, 1400795, 1910175, 4202385, 7003975, 21011925]

約数ペア:

[(1, 21011925), (3, 7003975), (5, 4202385), (11, 1910175), (15, 1400795), (25, 840477), (33, 636725), (55, 382035), (75, 280159), (165, 127345), (275, 76407), (825, 25469)]