21859196

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{4051}}^1$

素因数の和:4145

約数の個数: 24

約数和(自身を含む): 40844160

約数和(自身を除く): 18984964

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 2698, 4051, 5396, 8102, 16204, 76969, 153938, 287621, 307876, 575242, 1150484, 5464799, 10929598, 21859196]

約数ペア:

[(1, 21859196), (2, 10929598), (4, 5464799), (19, 1150484), (38, 575242), (71, 307876), (76, 287621), (142, 153938), (284, 76969), (1349, 16204), (2698, 8102), (4051, 5396)]