21355250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{12203}}^1$

素因数の和:12227

約数の個数: 32

約数和(自身を含む): 45691776

約数和(自身を除く): 24336526

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 875, 1750, 12203, 24406, 61015, 85421, 122030, 170842, 305075, 427105, 610150, 854210, 1525375, 2135525, 3050750, 4271050, 10677625, 21355250]

約数ペア:

[(1, 21355250), (2, 10677625), (5, 4271050), (7, 3050750), (10, 2135525), (14, 1525375), (25, 854210), (35, 610150), (50, 427105), (70, 305075), (125, 170842), (175, 122030), (250, 85421), (350, 61015), (875, 24406), (1750, 12203)]