21267904

素因数分解:

$2^6\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1637}}^1$

素因数の和:1685

約数の個数: 56

約数和(自身を含む): 49926240

約数和(自身を除く): 28658336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 64, 112, 116, 203, 224, 232, 406, 448, 464, 812, 928, 1624, 1637, 1856, 3248, 3274, 6496, 6548, 11459, 12992, 13096, 22918, 26192, 45836, 47473, 52384, 91672, 94946, 104768, 183344, 189892, 332311, 366688, 379784, 664622, 733376, 759568, 1329244, 1519136, 2658488, 3038272, 5316976, 10633952, 21267904]

約数ペア:

[(1, 21267904), (2, 10633952), (4, 5316976), (7, 3038272), (8, 2658488), (14, 1519136), (16, 1329244), (28, 759568), (29, 733376), (32, 664622), (56, 379784), (58, 366688), (64, 332311), (112, 189892), (116, 183344), (203, 104768), (224, 94946), (232, 91672), (406, 52384), (448, 47473), (464, 45836), (812, 26192), (928, 22918), (1624, 13096), (1637, 12992), (1856, 11459), (3248, 6548), (3274, 6496)]