21339434

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{1321}}^1$

素因数の和:1561

約数の個数: 16

約数和(自身を含む): 32981256

約数和(自身を除く): 11641822

約数列:

[1, 2, 41, 82, 197, 394, 1321, 2642, 8077, 16154, 54161, 108322, 260237, 520474, 10669717, 21339434]

約数ペア:

[(1, 21339434), (2, 10669717), (41, 520474), (82, 260237), (197, 108322), (394, 54161), (1321, 16154), (2642, 8077)]