21445376

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{4409}}^1$

素因数の和:4444

約数の個数: 36

約数和(自身を含む): 45070200

約数和(自身を除く): 23624824

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 4409, 4864, 8818, 17636, 35272, 70544, 83771, 141088, 167542, 282176, 335084, 564352, 670168, 1128704, 1340336, 2680672, 5361344, 10722688, 21445376]

約数ペア:

[(1, 21445376), (2, 10722688), (4, 5361344), (8, 2680672), (16, 1340336), (19, 1128704), (32, 670168), (38, 564352), (64, 335084), (76, 282176), (128, 167542), (152, 141088), (256, 83771), (304, 70544), (608, 35272), (1216, 17636), (2432, 8818), (4409, 4864)]