21757875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{3413}}^1$

素因数の和:3448

約数の個数: 32

約数和(自身を含む): 38346048

約数和(自身を除く): 16588173

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 1275, 2125, 3413, 6375, 10239, 17065, 51195, 58021, 85325, 174063, 255975, 290105, 426625, 870315, 1279875, 1450525, 4351575, 7252625, 21757875]

約数ペア:

[(1, 21757875), (3, 7252625), (5, 4351575), (15, 1450525), (17, 1279875), (25, 870315), (51, 426625), (75, 290105), (85, 255975), (125, 174063), (255, 85325), (375, 58021), (425, 51195), (1275, 17065), (2125, 10239), (3413, 6375)]