21392224

素因数分解:

$2^5\times 7^3\times {\mathrm{1949}}^1$

素因数の和:1980

約数の個数: 48

約数和(自身を含む): 49140000

約数和(自身を除く): 27747776

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 343, 392, 686, 784, 1372, 1568, 1949, 2744, 3898, 5488, 7796, 10976, 13643, 15592, 27286, 31184, 54572, 62368, 95501, 109144, 191002, 218288, 382004, 436576, 668507, 764008, 1337014, 1528016, 2674028, 3056032, 5348056, 10696112, 21392224]

約数ペア:

[(1, 21392224), (2, 10696112), (4, 5348056), (7, 3056032), (8, 2674028), (14, 1528016), (16, 1337014), (28, 764008), (32, 668507), (49, 436576), (56, 382004), (98, 218288), (112, 191002), (196, 109144), (224, 95501), (343, 62368), (392, 54572), (686, 31184), (784, 27286), (1372, 15592), (1568, 13643), (1949, 10976), (2744, 7796), (3898, 5488)]