21449768

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{86491}}^1$

素因数の和:86528

約数の個数: 16

約数和(自身を含む): 41516160

約数和(自身を除く): 20066392

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 86491, 172982, 345964, 691928, 2681221, 5362442, 10724884, 21449768]

約数ペア:

[(1, 21449768), (2, 10724884), (4, 5362442), (8, 2681221), (31, 691928), (62, 345964), (124, 172982), (248, 86491)]