28910324

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{20021}}^1$

素因数の和:20063

約数の個数: 18

約数和(自身を含む): 53398674

約数和(自身を除く): 24488350

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 20021, 40042, 80084, 380399, 760798, 1521596, 7227581, 14455162, 28910324]

約数ペア:

[(1, 28910324), (2, 14455162), (4, 7227581), (19, 1521596), (38, 760798), (76, 380399), (361, 80084), (722, 40042), (1444, 20021)]