21408468

素因数分解:

$2^2\times 3^1\times {\mathrm{661}}^1\times {\mathrm{2699}}^1$

素因数の和:3367

約数の個数: 24

約数和(自身を含む): 50047200

約数和(自身を除く): 28638732

約数列:

[1, 2, 3, 4, 6, 12, 661, 1322, 1983, 2644, 2699, 3966, 5398, 7932, 8097, 10796, 16194, 32388, 1784039, 3568078, 5352117, 7136156, 10704234, 21408468]

約数ペア:

[(1, 21408468), (2, 10704234), (3, 7136156), (4, 5352117), (6, 3568078), (12, 1784039), (661, 32388), (1322, 16194), (1983, 10796), (2644, 8097), (2699, 7932), (3966, 5398)]