21591248

素因数分解:

$2^4\times 7^1\times {\mathrm{263}}^1\times {\mathrm{733}}^1$

素因数の和:1011

約数の個数: 40

約数和(自身を含む): 48056448

約数和(自身を除く): 26465200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 263, 526, 733, 1052, 1466, 1841, 2104, 2932, 3682, 4208, 5131, 5864, 7364, 10262, 11728, 14728, 20524, 29456, 41048, 82096, 192779, 385558, 771116, 1349453, 1542232, 2698906, 3084464, 5397812, 10795624, 21591248]

約数ペア:

[(1, 21591248), (2, 10795624), (4, 5397812), (7, 3084464), (8, 2698906), (14, 1542232), (16, 1349453), (28, 771116), (56, 385558), (112, 192779), (263, 82096), (526, 41048), (733, 29456), (1052, 20524), (1466, 14728), (1841, 11728), (2104, 10262), (2932, 7364), (3682, 5864), (4208, 5131)]