21454384

素因数分解:

$2^4\times 7^1\times {\mathrm{223}}^1\times {\mathrm{859}}^1$

素因数の和:1097

約数の個数: 40

約数和(自身を含む): 47774720

約数和(自身を除く): 26320336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 223, 446, 859, 892, 1561, 1718, 1784, 3122, 3436, 3568, 6013, 6244, 6872, 12026, 12488, 13744, 24052, 24976, 48104, 96208, 191557, 383114, 766228, 1340899, 1532456, 2681798, 3064912, 5363596, 10727192, 21454384]

約数ペア:

[(1, 21454384), (2, 10727192), (4, 5363596), (7, 3064912), (8, 2681798), (14, 1532456), (16, 1340899), (28, 766228), (56, 383114), (112, 191557), (223, 96208), (446, 48104), (859, 24976), (892, 24052), (1561, 13744), (1718, 12488), (1784, 12026), (3122, 6872), (3436, 6244), (3568, 6013)]