21213952

素因数分解:

$2^8\times {\mathrm{173}}^1\times {\mathrm{479}}^1$

素因数の和:668

約数の個数: 36

約数和(自身を含む): 42678720

約数和(自身を除く): 21464768

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 173, 256, 346, 479, 692, 958, 1384, 1916, 2768, 3832, 5536, 7664, 11072, 15328, 22144, 30656, 44288, 61312, 82867, 122624, 165734, 331468, 662936, 1325872, 2651744, 5303488, 10606976, 21213952]

約数ペア:

[(1, 21213952), (2, 10606976), (4, 5303488), (8, 2651744), (16, 1325872), (32, 662936), (64, 331468), (128, 165734), (173, 122624), (256, 82867), (346, 61312), (479, 44288), (692, 30656), (958, 22144), (1384, 15328), (1916, 11072), (2768, 7664), (3832, 5536)]