21645824

素因数分解:

$2^9\times {\mathrm{67}}^1\times {\mathrm{631}}^1$

素因数の和:716

約数の個数: 40

約数和(自身を含む): 43964448

約数和(自身を除く): 22318624

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 256, 268, 512, 536, 631, 1072, 1262, 2144, 2524, 4288, 5048, 8576, 10096, 17152, 20192, 34304, 40384, 42277, 80768, 84554, 161536, 169108, 323072, 338216, 676432, 1352864, 2705728, 5411456, 10822912, 21645824]

約数ペア:

[(1, 21645824), (2, 10822912), (4, 5411456), (8, 2705728), (16, 1352864), (32, 676432), (64, 338216), (67, 323072), (128, 169108), (134, 161536), (256, 84554), (268, 80768), (512, 42277), (536, 40384), (631, 34304), (1072, 20192), (1262, 17152), (2144, 10096), (2524, 8576), (4288, 5048)]