21565696

素因数分解:

$2^8\times {\mathrm{61}}^1\times {\mathrm{1381}}^1$

素因数の和:1458

約数の個数: 36

約数和(自身を含む): 43784524

約数和(自身を除く): 22218828

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 976, 1381, 1952, 2762, 3904, 5524, 7808, 11048, 15616, 22096, 44192, 84241, 88384, 168482, 176768, 336964, 353536, 673928, 1347856, 2695712, 5391424, 10782848, 21565696]

約数ペア:

[(1, 21565696), (2, 10782848), (4, 5391424), (8, 2695712), (16, 1347856), (32, 673928), (61, 353536), (64, 336964), (122, 176768), (128, 168482), (244, 88384), (256, 84241), (488, 44192), (976, 22096), (1381, 15616), (1952, 11048), (2762, 7808), (3904, 5524)]