21780156

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{95527}}^1$

素因数の和:95553

約数の個数: 24

約数和(自身を含む): 53495680

約数和(自身を除く): 31715524

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 95527, 191054, 286581, 382108, 573162, 1146324, 1815013, 3630026, 5445039, 7260052, 10890078, 21780156]

約数ペア:

[(1, 21780156), (2, 10890078), (3, 7260052), (4, 5445039), (6, 3630026), (12, 1815013), (19, 1146324), (38, 573162), (57, 382108), (76, 286581), (114, 191054), (228, 95527)]