21077248

素因数分解:

$2^8\times {\mathrm{281}}^1\times {\mathrm{293}}^1$

素因数の和:590

約数の個数: 36

約数和(自身を含む): 42365988

約数和(自身を除く): 21288740

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 281, 293, 562, 586, 1124, 1172, 2248, 2344, 4496, 4688, 8992, 9376, 17984, 18752, 35968, 37504, 71936, 75008, 82333, 164666, 329332, 658664, 1317328, 2634656, 5269312, 10538624, 21077248]

約数ペア:

[(1, 21077248), (2, 10538624), (4, 5269312), (8, 2634656), (16, 1317328), (32, 658664), (64, 329332), (128, 164666), (256, 82333), (281, 75008), (293, 71936), (562, 37504), (586, 35968), (1124, 18752), (1172, 17984), (2248, 9376), (2344, 8992), (4496, 4688)]