21799456

素因数分解:

$2^5\times 7^1\times {\mathrm{307}}^1\times {\mathrm{317}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 49363776

約数和(自身を除く): 27564320

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 307, 317, 614, 634, 1228, 1268, 2149, 2219, 2456, 2536, 4298, 4438, 4912, 5072, 8596, 8876, 9824, 10144, 17192, 17752, 34384, 35504, 68768, 71008, 97319, 194638, 389276, 681233, 778552, 1362466, 1557104, 2724932, 3114208, 5449864, 10899728, 21799456]

約数ペア:

[(1, 21799456), (2, 10899728), (4, 5449864), (7, 3114208), (8, 2724932), (14, 1557104), (16, 1362466), (28, 778552), (32, 681233), (56, 389276), (112, 194638), (224, 97319), (307, 71008), (317, 68768), (614, 35504), (634, 34384), (1228, 17752), (1268, 17192), (2149, 10144), (2219, 9824), (2456, 8876), (2536, 8596), (4298, 5072), (4438, 4912)]