21115691536

素因数分解:

$2^4\times {\mathrm{2879}}^1\times {\mathrm{458399}}^1$

素因数の和:461286

約数の個数: 20

約数和(自身を含む): 40925952000

約数和(自身を除く): 19810260464

約数列:

[1, 2, 4, 8, 16, 2879, 5758, 11516, 23032, 46064, 458399, 916798, 1833596, 3667192, 7334384, 1319730721, 2639461442, 5278922884, 10557845768, 21115691536]

約数ペア:

[(1, 21115691536), (2, 10557845768), (4, 5278922884), (8, 2639461442), (16, 1319730721), (2879, 7334384), (5758, 3667192), (11516, 1833596), (23032, 916798), (46064, 458399)]