19798016

素因数分解:

$2^{11}\times 7^1\times {\mathrm{1381}}^1$

素因数の和:1410

約数の個数: 48

約数和(自身を含む): 45274320

約数和(自身を除く): 25476304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1381, 1792, 2048, 2762, 3584, 5524, 7168, 9667, 11048, 14336, 19334, 22096, 38668, 44192, 77336, 88384, 154672, 176768, 309344, 353536, 618688, 707072, 1237376, 1414144, 2474752, 2828288, 4949504, 9899008, 19798016]

約数ペア:

[(1, 19798016), (2, 9899008), (4, 4949504), (7, 2828288), (8, 2474752), (14, 1414144), (16, 1237376), (28, 707072), (32, 618688), (56, 353536), (64, 309344), (112, 176768), (128, 154672), (224, 88384), (256, 77336), (448, 44192), (512, 38668), (896, 22096), (1024, 19334), (1381, 14336), (1792, 11048), (2048, 9667), (2762, 7168), (3584, 5524)]