21275648

素因数分解:

$2^{10}\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:362

約数の個数: 44

約数和(自身を含む): 43232640

約数和(自身を除く): 21956992

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 128, 158, 256, 263, 316, 512, 526, 632, 1024, 1052, 1264, 2104, 2528, 4208, 5056, 8416, 10112, 16832, 20224, 20777, 33664, 40448, 41554, 67328, 80896, 83108, 134656, 166216, 269312, 332432, 664864, 1329728, 2659456, 5318912, 10637824, 21275648]

約数ペア:

[(1, 21275648), (2, 10637824), (4, 5318912), (8, 2659456), (16, 1329728), (32, 664864), (64, 332432), (79, 269312), (128, 166216), (158, 134656), (256, 83108), (263, 80896), (316, 67328), (512, 41554), (526, 40448), (632, 33664), (1024, 20777), (1052, 20224), (1264, 16832), (2104, 10112), (2528, 8416), (4208, 5056)]