20913864

素因数分解:

$2^3\times 3^1\times {\mathrm{631}}^1\times {\mathrm{1381}}^1$

素因数の和:2021

約数の個数: 32

約数和(自身を含む): 52405440

約数和(自身を除く): 31491576

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 631, 1262, 1381, 1893, 2524, 2762, 3786, 4143, 5048, 5524, 7572, 8286, 11048, 15144, 16572, 33144, 871411, 1742822, 2614233, 3485644, 5228466, 6971288, 10456932, 20913864]

約数ペア:

[(1, 20913864), (2, 10456932), (3, 6971288), (4, 5228466), (6, 3485644), (8, 2614233), (12, 1742822), (24, 871411), (631, 33144), (1262, 16572), (1381, 15144), (1893, 11048), (2524, 8286), (2762, 7572), (3786, 5524), (4143, 5048)]