21408112

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{121637}}^1$

素因数の和:121656

約数の個数: 20

約数和(自身を含む): 45249336

約数和(自身を除く): 23841224

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 121637, 243274, 486548, 973096, 1338007, 1946192, 2676014, 5352028, 10704056, 21408112]

約数ペア:

[(1, 21408112), (2, 10704056), (4, 5352028), (8, 2676014), (11, 1946192), (16, 1338007), (22, 973096), (44, 486548), (88, 243274), (176, 121637)]