21255088

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42853}}^1$

素因数の和:42892

約数の個数: 20

約数和(自身を含む): 42511168

約数和(自身を除く): 21256080

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42853, 85706, 171412, 342824, 685648, 1328443, 2656886, 5313772, 10627544, 21255088]

約数ペア:

[(1, 21255088), (2, 10627544), (4, 5313772), (8, 2656886), (16, 1328443), (31, 685648), (62, 342824), (124, 171412), (248, 85706), (496, 42853)]