21557196

素因数分解:

$2^2\times 3^2\times {\mathrm{281}}^1\times {\mathrm{2131}}^1$

素因数の和:2422

約数の個数: 36

約数和(自身を含む): 54711384

約数和(自身を除く): 33154188

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 281, 562, 843, 1124, 1686, 2131, 2529, 3372, 4262, 5058, 6393, 8524, 10116, 12786, 19179, 25572, 38358, 76716, 598811, 1197622, 1796433, 2395244, 3592866, 5389299, 7185732, 10778598, 21557196]

約数ペア:

[(1, 21557196), (2, 10778598), (3, 7185732), (4, 5389299), (6, 3592866), (9, 2395244), (12, 1796433), (18, 1197622), (36, 598811), (281, 76716), (562, 38358), (843, 25572), (1124, 19179), (1686, 12786), (2131, 10116), (2529, 8524), (3372, 6393), (4262, 5058)]