21631456

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8779}}^1$

素因数の和:8807

約数の個数: 48

約数和(自身を含む): 53101440

約数和(自身を除く): 31469984

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 2464, 8779, 17558, 35116, 61453, 70232, 96569, 122906, 140464, 193138, 245812, 280928, 386276, 491624, 675983, 772552, 983248, 1351966, 1545104, 1966496, 2703932, 3090208, 5407864, 10815728, 21631456]

約数ペア:

[(1, 21631456), (2, 10815728), (4, 5407864), (7, 3090208), (8, 2703932), (11, 1966496), (14, 1545104), (16, 1351966), (22, 983248), (28, 772552), (32, 675983), (44, 491624), (56, 386276), (77, 280928), (88, 245812), (112, 193138), (154, 140464), (176, 122906), (224, 96569), (308, 70232), (352, 61453), (616, 35116), (1232, 17558), (2464, 8779)]