21361150

素因数分解:

$2^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{2621}}^1$

素因数の和:2796

約数の個数: 24

約数和(自身を含む): 39990744

約数和(自身を除く): 18629594

約数列:

[1, 2, 5, 10, 25, 50, 163, 326, 815, 1630, 2621, 4075, 5242, 8150, 13105, 26210, 65525, 131050, 427223, 854446, 2136115, 4272230, 10680575, 21361150]

約数ペア:

[(1, 21361150), (2, 10680575), (5, 4272230), (10, 2136115), (25, 854446), (50, 427223), (163, 131050), (326, 65525), (815, 26210), (1630, 13105), (2621, 8150), (4075, 5242)]