21958144

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{3299}}^1$

素因数の和:3330

約数の個数: 40

約数和(自身を含む): 47262600

約数和(自身を除く): 25304456

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 3299, 3328, 6598, 6656, 13196, 26392, 42887, 52784, 85774, 105568, 171548, 211136, 343096, 422272, 686192, 844544, 1372384, 1689088, 2744768, 5489536, 10979072, 21958144]

約数ペア:

[(1, 21958144), (2, 10979072), (4, 5489536), (8, 2744768), (13, 1689088), (16, 1372384), (26, 844544), (32, 686192), (52, 422272), (64, 343096), (104, 211136), (128, 171548), (208, 105568), (256, 85774), (416, 52784), (512, 42887), (832, 26392), (1664, 13196), (3299, 6656), (3328, 6598)]