21779072

素因数分解:

$2^7\times 7^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:353

約数の個数: 64

約数和(自身を含む): 50265600

約数和(自身を除く): 28486528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 109, 112, 128, 218, 223, 224, 436, 446, 448, 763, 872, 892, 896, 1526, 1561, 1744, 1784, 3052, 3122, 3488, 3568, 6104, 6244, 6976, 7136, 12208, 12488, 13952, 14272, 24307, 24416, 24976, 28544, 48614, 48832, 49952, 97228, 97664, 99904, 170149, 194456, 199808, 340298, 388912, 680596, 777824, 1361192, 1555648, 2722384, 3111296, 5444768, 10889536, 21779072]

約数ペア:

[(1, 21779072), (2, 10889536), (4, 5444768), (7, 3111296), (8, 2722384), (14, 1555648), (16, 1361192), (28, 777824), (32, 680596), (56, 388912), (64, 340298), (109, 199808), (112, 194456), (128, 170149), (218, 99904), (223, 97664), (224, 97228), (436, 49952), (446, 48832), (448, 48614), (763, 28544), (872, 24976), (892, 24416), (896, 24307), (1526, 14272), (1561, 13952), (1744, 12488), (1784, 12208), (3052, 7136), (3122, 6976), (3488, 6244), (3568, 6104)]