21181888

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3637}}^1$

素因数の和:3669

約数の個数: 56

約数和(自身を含む): 51746912

約数和(自身を除く): 30565024

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 182, 208, 224, 364, 416, 448, 728, 832, 1456, 2912, 3637, 5824, 7274, 14548, 25459, 29096, 47281, 50918, 58192, 94562, 101836, 116384, 189124, 203672, 232768, 330967, 378248, 407344, 661934, 756496, 814688, 1323868, 1512992, 1629376, 2647736, 3025984, 5295472, 10590944, 21181888]

約数ペア:

[(1, 21181888), (2, 10590944), (4, 5295472), (7, 3025984), (8, 2647736), (13, 1629376), (14, 1512992), (16, 1323868), (26, 814688), (28, 756496), (32, 661934), (52, 407344), (56, 378248), (64, 330967), (91, 232768), (104, 203672), (112, 189124), (182, 116384), (208, 101836), (224, 94562), (364, 58192), (416, 50918), (448, 47281), (728, 29096), (832, 25459), (1456, 14548), (2912, 7274), (3637, 5824)]