21516250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{2459}}^1$

素因数の和:2488

約数の個数: 40

約数和(自身を含む): 46110240

約数和(自身を除く): 24593990

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 625, 875, 1250, 1750, 2459, 4375, 4918, 8750, 12295, 17213, 24590, 34426, 61475, 86065, 122950, 172130, 307375, 430325, 614750, 860650, 1536875, 2151625, 3073750, 4303250, 10758125, 21516250]

約数ペア:

[(1, 21516250), (2, 10758125), (5, 4303250), (7, 3073750), (10, 2151625), (14, 1536875), (25, 860650), (35, 614750), (50, 430325), (70, 307375), (125, 172130), (175, 122950), (250, 86065), (350, 61475), (625, 34426), (875, 24590), (1250, 17213), (1750, 12295), (2459, 8750), (4375, 4918)]