21957872

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1279}}^1$

素因数の和:1353

約数の個数: 40

約数和(自身を含む): 45235200

約数和(自身を除く): 23277328

約数列:

[1, 2, 4, 8, 16, 29, 37, 58, 74, 116, 148, 232, 296, 464, 592, 1073, 1279, 2146, 2558, 4292, 5116, 8584, 10232, 17168, 20464, 37091, 47323, 74182, 94646, 148364, 189292, 296728, 378584, 593456, 757168, 1372367, 2744734, 5489468, 10978936, 21957872]

約数ペア:

[(1, 21957872), (2, 10978936), (4, 5489468), (8, 2744734), (16, 1372367), (29, 757168), (37, 593456), (58, 378584), (74, 296728), (116, 189292), (148, 148364), (232, 94646), (296, 74182), (464, 47323), (592, 37091), (1073, 20464), (1279, 17168), (2146, 10232), (2558, 8584), (4292, 5116)]