20943232

素因数分解:

$2^7\times {\mathrm{131}}^1\times {\mathrm{1249}}^1$

素因数の和:1394

約数の個数: 32

約数和(自身を含む): 42075000

約数和(自身を除く): 21131768

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 131, 262, 524, 1048, 1249, 2096, 2498, 4192, 4996, 8384, 9992, 16768, 19984, 39968, 79936, 159872, 163619, 327238, 654476, 1308952, 2617904, 5235808, 10471616, 20943232]

約数ペア:

[(1, 20943232), (2, 10471616), (4, 5235808), (8, 2617904), (16, 1308952), (32, 654476), (64, 327238), (128, 163619), (131, 159872), (262, 79936), (524, 39968), (1048, 19984), (1249, 16768), (2096, 9992), (2498, 8384), (4192, 4996)]