21911456

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4253}}^1$

素因数の和:4293

約数の個数: 48

約数和(自身を含む): 51456384

約数和(自身を除く): 29544928

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 224, 322, 368, 644, 736, 1288, 2576, 4253, 5152, 8506, 17012, 29771, 34024, 59542, 68048, 97819, 119084, 136096, 195638, 238168, 391276, 476336, 684733, 782552, 952672, 1369466, 1565104, 2738932, 3130208, 5477864, 10955728, 21911456]

約数ペア:

[(1, 21911456), (2, 10955728), (4, 5477864), (7, 3130208), (8, 2738932), (14, 1565104), (16, 1369466), (23, 952672), (28, 782552), (32, 684733), (46, 476336), (56, 391276), (92, 238168), (112, 195638), (161, 136096), (184, 119084), (224, 97819), (322, 68048), (368, 59542), (644, 34024), (736, 29771), (1288, 17012), (2576, 8506), (4253, 5152)]