28201918

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{1709}}^1$

素因数の和:1971

約数の個数: 16

約数和(自身を含む): 43666560

約数和(自身を除く): 15464642

約数列:

[1, 2, 37, 74, 223, 446, 1709, 3418, 8251, 16502, 63233, 126466, 381107, 762214, 14100959, 28201918]

約数ペア:

[(1, 28201918), (2, 14100959), (37, 762214), (74, 381107), (223, 126466), (446, 63233), (1709, 16502), (3418, 8251)]