21005932016

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{57081337}}^1$

素因数の和:57081368

約数の個数: 20

約数和(自身を含む): 42468515472

約数和(自身を除く): 21462583456

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 57081337, 114162674, 228325348, 456650696, 913301392, 1312870751, 2625741502, 5251483004, 10502966008, 21005932016]

約数ペア:

[(1, 21005932016), (2, 10502966008), (4, 5251483004), (8, 2625741502), (16, 1312870751), (23, 913301392), (46, 456650696), (92, 228325348), (184, 114162674), (368, 57081337)]