21128296

素因数分解:

$2^3\times 7^1\times {\mathrm{377291}}^1$

素因数の和:377304

約数の個数: 16

約数和(自身を含む): 45275040

約数和(自身を除く): 24146744

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 377291, 754582, 1509164, 2641037, 3018328, 5282074, 10564148, 21128296]

約数ペア:

[(1, 21128296), (2, 10564148), (4, 5282074), (7, 3018328), (8, 2641037), (14, 1509164), (28, 754582), (56, 377291)]