21945728

素因数分解:

$2^7\times 7^2\times {\mathrm{3499}}^1$

素因数の和:3527

約数の個数: 48

約数和(自身を含む): 50872500

約数和(自身を除く): 28926772

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 3499, 6272, 6998, 13996, 24493, 27992, 48986, 55984, 97972, 111968, 171451, 195944, 223936, 342902, 391888, 447872, 685804, 783776, 1371608, 1567552, 2743216, 3135104, 5486432, 10972864, 21945728]

約数ペア:

[(1, 21945728), (2, 10972864), (4, 5486432), (7, 3135104), (8, 2743216), (14, 1567552), (16, 1371608), (28, 783776), (32, 685804), (49, 447872), (56, 391888), (64, 342902), (98, 223936), (112, 195944), (128, 171451), (196, 111968), (224, 97972), (392, 55984), (448, 48986), (784, 27992), (896, 24493), (1568, 13996), (3136, 6998), (3499, 6272)]