21087584

素因数分解:

$2^5\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2003}}^1$

素因数の和:2067

約数の個数: 48

約数和(自身を含む): 48480768

約数和(自身を除く): 27393184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 94, 112, 188, 224, 329, 376, 658, 752, 1316, 1504, 2003, 2632, 4006, 5264, 8012, 10528, 14021, 16024, 28042, 32048, 56084, 64096, 94141, 112168, 188282, 224336, 376564, 448672, 658987, 753128, 1317974, 1506256, 2635948, 3012512, 5271896, 10543792, 21087584]

約数ペア:

[(1, 21087584), (2, 10543792), (4, 5271896), (7, 3012512), (8, 2635948), (14, 1506256), (16, 1317974), (28, 753128), (32, 658987), (47, 448672), (56, 376564), (94, 224336), (112, 188282), (188, 112168), (224, 94141), (329, 64096), (376, 56084), (658, 32048), (752, 28042), (1316, 16024), (1504, 14021), (2003, 10528), (2632, 8012), (4006, 5264)]