21802984

素因数分解:

$2^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2801}}^1$

素因数の和:2953

約数の個数: 32

約数和(自身を含む): 47073600

約数和(自身を除く): 25270616

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 139, 278, 556, 973, 1112, 1946, 2801, 3892, 5602, 7784, 11204, 19607, 22408, 39214, 78428, 156856, 389339, 778678, 1557356, 2725373, 3114712, 5450746, 10901492, 21802984]

約数ペア:

[(1, 21802984), (2, 10901492), (4, 5450746), (7, 3114712), (8, 2725373), (14, 1557356), (28, 778678), (56, 389339), (139, 156856), (278, 78428), (556, 39214), (973, 22408), (1112, 19607), (1946, 11204), (2801, 7784), (3892, 5602)]