21890036

素因数分解:

$2^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{4519}}^1$

素因数の和:4703

約数の個数: 24

約数和(自身を含む): 44042880

約数和(自身を除く): 22152844

約数列:

[1, 2, 4, 7, 14, 28, 173, 346, 692, 1211, 2422, 4519, 4844, 9038, 18076, 31633, 63266, 126532, 781787, 1563574, 3127148, 5472509, 10945018, 21890036]

約数ペア:

[(1, 21890036), (2, 10945018), (4, 5472509), (7, 3127148), (14, 1563574), (28, 781787), (173, 126532), (346, 63266), (692, 31633), (1211, 18076), (2422, 9038), (4519, 4844)]