19812352

素因数分解:

$2^{12}\times 7^1\times {\mathrm{691}}^1$

素因数の和:722

約数の個数: 52

約数和(自身を含む): 45345376

約数和(自身を除く): 25533024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 691, 896, 1024, 1382, 1792, 2048, 2764, 3584, 4096, 4837, 5528, 7168, 9674, 11056, 14336, 19348, 22112, 28672, 38696, 44224, 77392, 88448, 154784, 176896, 309568, 353792, 619136, 707584, 1238272, 1415168, 2476544, 2830336, 4953088, 9906176, 19812352]

約数ペア:

[(1, 19812352), (2, 9906176), (4, 4953088), (7, 2830336), (8, 2476544), (14, 1415168), (16, 1238272), (28, 707584), (32, 619136), (56, 353792), (64, 309568), (112, 176896), (128, 154784), (224, 88448), (256, 77392), (448, 44224), (512, 38696), (691, 28672), (896, 22112), (1024, 19348), (1382, 14336), (1792, 11056), (2048, 9674), (2764, 7168), (3584, 5528), (4096, 4837)]